I'm experiencing channels crashing occasionally, and I decided to check logcat to see if anything stood out. However, it seems like your crash reporting library is failing to send reports to you. Looking into it, if the reports are being sent to your domain, you're using a self-signed TLS cert which will cause this class of error. This should be easily remedied by using something like https://letsencrypt.org/ to generate new certs backed by a known CA.
10-08 09:29:57.891 9063 9078 E ACRA : Failed to send crash report for /data/user/0/ie.macinnes.tvheadend/app_ACRA-approved/2017-10-08T09:29:57.344+01:00-IS_SILENT.stacktrace
10-08 09:29:57.891 9063 9078 E ACRA : org.acra.sender.ReportSenderException: Policy marked this task as incomplete. ACRA will try to send this report again.
10-08 09:29:57.891 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.sendCrashReport(ReportDistributor.java:118)
10-08 09:29:57.891 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.distribute(ReportDistributor.java:74)
10-08 09:29:57.891 9063 9078 E ACRA : at org.acra.sender.SenderService.onHandleIntent(SenderService.java:74)
10-08 09:29:57.891 9063 9078 E ACRA : at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:67)
10-08 09:29:57.891 9063 9078 E ACRA : at android.os.Handler.dispatchMessage(Handler.java:102)
10-08 09:29:57.891 9063 9078 E ACRA : at android.os.Looper.loop(Looper.java:154)
10-08 09:29:57.891 9063 9078 E ACRA : at android.os.HandlerThread.run(HandlerThread.java:61)
10-08 09:29:57.891 9063 9078 E ACRA : Caused by: org.acra.sender.ReportSenderException: Error while sending JSON report via Http PUT
10-08 09:29:57.891 9063 9078 E ACRA : at org.acra.sender.HttpSender.send(HttpSender.java:240)
10-08 09:29:57.891 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.sendCrashReport(ReportDistributor.java:107)
10-08 09:29:57.891 9063 9078 E ACRA : ... 6 more
10-08 09:29:57.891 9063 9078 E ACRA : Caused by: javax.net.ssl.SSLHandshakeException: Chain validation failed
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:361)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.Connection.connectTls(Connection.java:235)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.Connection.connectSocket(Connection.java:199)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.Connection.connect(Connection.java:172)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:367)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:130)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:329)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:246)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:457)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:126)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.connect(DelegatingHttpsURLConnection.java:89)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java)
10-08 09:29:57.891 9063 9078 E ACRA : at org.acra.util.HttpRequest.send(HttpRequest.java:137)
10-08 09:29:57.891 9063 9078 E ACRA : at org.acra.sender.HttpSender.send(HttpSender.java:236)
10-08 09:29:57.891 9063 9078 E ACRA : ... 7 more
10-08 09:29:57.891 9063 9078 E ACRA : Caused by: java.security.cert.CertificateException: Chain validation failed
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.verifyChain(TrustManagerImpl.java:610)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:444)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:464)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:508)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:401)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:375)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.getTrustedChainForServer(TrustManagerImpl.java:304)
10-08 09:29:57.891 9063 9078 E ACRA : at android.security.net.config.NetworkSecurityTrustManager.checkServerTrusted(NetworkSecurityTrustManager.java:94)
10-08 09:29:57.891 9063 9078 E ACRA : at android.security.net.config.RootTrustManager.checkServerTrusted(RootTrustManager.java:88)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.Platform.checkServerTrusted(Platform.java:178)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.verifyCertificateChain(OpenSSLSocketImpl.java:596)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
10-08 09:29:57.891 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:357)
10-08 09:29:57.891 9063 9078 E ACRA : ... 20 more
10-08 09:29:57.891 9063 9078 E ACRA : Caused by: java.security.cert.CertPathValidatorException: timestamp check failed
10-08 09:29:57.891 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:127)
10-08 09:29:57.891 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:215)
10-08 09:29:57.891 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:143)
10-08 09:29:57.891 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:79)
10-08 09:29:57.891 9063 9078 E ACRA : at java.security.cert.CertPathValidator.validate(CertPathValidator.java:301)
10-08 09:29:57.892 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.verifyChain(TrustManagerImpl.java:606)
10-08 09:29:57.892 9063 9078 E ACRA : ... 32 more
10-08 09:29:57.892 9063 9078 E ACRA : Caused by: java.security.cert.CertificateExpiredException: Certificate expired at Fri Sep 29 10:03:00 GMT+01:00 2017 (compared to Sun Oct 08 09:29:57 GMT+01:00 2017)
10-08 09:29:57.892 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLX509Certificate.checkValidity(OpenSSLX509Certificate.java:234)
10-08 09:29:57.892 9063 9078 E ACRA : at sun.security.provider.certpath.BasicChecker.verifyTimestamp(BasicChecker.java:194)
10-08 09:29:57.892 9063 9078 E ACRA : at sun.security.provider.certpath.BasicChecker.check(BasicChecker.java:144)
10-08 09:29:57.892 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:119)
10-08 09:29:57.892 9063 9078 E ACRA : ... 37 more
10-08 09:29:57.908 9063 9078 I ACRA : Sending report /data/user/0/ie.macinnes.tvheadend/app_ACRA-approved/2017-10-08T08:58:51.783+01:00-IS_SILENT.stacktrace
10-08 09:29:58.016 9063 9078 E ACRA : Failed to send crash report for /data/user/0/ie.macinnes.tvheadend/app_ACRA-approved/2017-10-08T08:58:51.783+01:00-IS_SILENT.stacktrace
10-08 09:29:58.016 9063 9078 E ACRA : org.acra.sender.ReportSenderException: Policy marked this task as incomplete. ACRA will try to send this report again.
10-08 09:29:58.016 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.sendCrashReport(ReportDistributor.java:118)
10-08 09:29:58.016 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.distribute(ReportDistributor.java:74)
10-08 09:29:58.016 9063 9078 E ACRA : at org.acra.sender.SenderService.onHandleIntent(SenderService.java:74)
10-08 09:29:58.016 9063 9078 E ACRA : at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:67)
10-08 09:29:58.016 9063 9078 E ACRA : at android.os.Handler.dispatchMessage(Handler.java:102)
10-08 09:29:58.016 9063 9078 E ACRA : at android.os.Looper.loop(Looper.java:154)
10-08 09:29:58.016 9063 9078 E ACRA : at android.os.HandlerThread.run(HandlerThread.java:61)
10-08 09:29:58.016 9063 9078 E ACRA : Caused by: org.acra.sender.ReportSenderException: Error while sending JSON report via Http PUT
10-08 09:29:58.016 9063 9078 E ACRA : at org.acra.sender.HttpSender.send(HttpSender.java:240)
10-08 09:29:58.016 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.sendCrashReport(ReportDistributor.java:107)
10-08 09:29:58.016 9063 9078 E ACRA : ... 6 more
10-08 09:29:58.016 9063 9078 E ACRA : Caused by: javax.net.ssl.SSLHandshakeException: Chain validation failed
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:361)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.Connection.connectTls(Connection.java:235)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.Connection.connectSocket(Connection.java:199)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.Connection.connect(Connection.java:172)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:367)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:130)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:329)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:246)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:457)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:126)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.connect(DelegatingHttpsURLConnection.java:89)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java)
10-08 09:29:58.016 9063 9078 E ACRA : at org.acra.util.HttpRequest.send(HttpRequest.java:137)
10-08 09:29:58.016 9063 9078 E ACRA : at org.acra.sender.HttpSender.send(HttpSender.java:236)
10-08 09:29:58.016 9063 9078 E ACRA : ... 7 more
10-08 09:29:58.016 9063 9078 E ACRA : Caused by: java.security.cert.CertificateException: Chain validation failed
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.verifyChain(TrustManagerImpl.java:610)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:444)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:464)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:508)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:401)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:375)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.getTrustedChainForServer(TrustManagerImpl.java:304)
10-08 09:29:58.016 9063 9078 E ACRA : at android.security.net.config.NetworkSecurityTrustManager.checkServerTrusted(NetworkSecurityTrustManager.java:94)
10-08 09:29:58.016 9063 9078 E ACRA : at android.security.net.config.RootTrustManager.checkServerTrusted(RootTrustManager.java:88)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.Platform.checkServerTrusted(Platform.java:178)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.verifyCertificateChain(OpenSSLSocketImpl.java:596)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
10-08 09:29:58.016 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:357)
10-08 09:29:58.016 9063 9078 E ACRA : ... 20 more
10-08 09:29:58.016 9063 9078 E ACRA : Caused by: java.security.cert.CertPathValidatorException: timestamp check failed
10-08 09:29:58.016 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:127)
10-08 09:29:58.016 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:215)
10-08 09:29:58.016 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:143)
10-08 09:29:58.016 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:79)
10-08 09:29:58.016 9063 9078 E ACRA : at java.security.cert.CertPathValidator.validate(CertPathValidator.java:301)
10-08 09:29:58.017 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.verifyChain(TrustManagerImpl.java:606)
10-08 09:29:58.017 9063 9078 E ACRA : ... 32 more
10-08 09:29:58.017 9063 9078 E ACRA : Caused by: java.security.cert.CertificateExpiredException: Certificate expired at Fri Sep 29 10:03:00 GMT+01:00 2017 (compared to Sun Oct 08 09:29:58 GMT+01:00 2017)
10-08 09:29:58.017 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLX509Certificate.checkValidity(OpenSSLX509Certificate.java:234)
10-08 09:29:58.017 9063 9078 E ACRA : at sun.security.provider.certpath.BasicChecker.verifyTimestamp(BasicChecker.java:194)
10-08 09:29:58.017 9063 9078 E ACRA : at sun.security.provider.certpath.BasicChecker.check(BasicChecker.java:144)
10-08 09:29:58.017 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:119)
10-08 09:29:58.017 9063 9078 E ACRA : ... 37 more
10-08 09:29:58.017 9063 9078 I ACRA : Sending report /data/user/0/ie.macinnes.tvheadend/app_ACRA-approved/2017-10-08T09:29:57.344+01:00-IS_SILENT.stacktrace
10-08 09:29:58.140 9063 9078 E ACRA : Failed to send crash report for /data/user/0/ie.macinnes.tvheadend/app_ACRA-approved/2017-10-08T09:29:57.344+01:00-IS_SILENT.stacktrace
10-08 09:29:58.140 9063 9078 E ACRA : org.acra.sender.ReportSenderException: Policy marked this task as incomplete. ACRA will try to send this report again.
10-08 09:29:58.140 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.sendCrashReport(ReportDistributor.java:118)
10-08 09:29:58.140 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.distribute(ReportDistributor.java:74)
10-08 09:29:58.140 9063 9078 E ACRA : at org.acra.sender.SenderService.onHandleIntent(SenderService.java:74)
10-08 09:29:58.140 9063 9078 E ACRA : at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:67)
10-08 09:29:58.140 9063 9078 E ACRA : at android.os.Handler.dispatchMessage(Handler.java:102)
10-08 09:29:58.140 9063 9078 E ACRA : at android.os.Looper.loop(Looper.java:154)
10-08 09:29:58.140 9063 9078 E ACRA : at android.os.HandlerThread.run(HandlerThread.java:61)
10-08 09:29:58.140 9063 9078 E ACRA : Caused by: org.acra.sender.ReportSenderException: Error while sending JSON report via Http PUT
10-08 09:29:58.140 9063 9078 E ACRA : at org.acra.sender.HttpSender.send(HttpSender.java:240)
10-08 09:29:58.140 9063 9078 E ACRA : at org.acra.sender.ReportDistributor.sendCrashReport(ReportDistributor.java:107)
10-08 09:29:58.140 9063 9078 E ACRA : ... 6 more
10-08 09:29:58.140 9063 9078 E ACRA : Caused by: javax.net.ssl.SSLHandshakeException: Chain validation failed
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:361)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.Connection.connectTls(Connection.java:235)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.Connection.connectSocket(Connection.java:199)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.Connection.connect(Connection.java:172)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:367)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:130)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:329)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:246)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:457)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:126)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.connect(DelegatingHttpsURLConnection.java:89)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java)
10-08 09:29:58.140 9063 9078 E ACRA : at org.acra.util.HttpRequest.send(HttpRequest.java:137)
10-08 09:29:58.140 9063 9078 E ACRA : at org.acra.sender.HttpSender.send(HttpSender.java:236)
10-08 09:29:58.140 9063 9078 E ACRA : ... 7 more
10-08 09:29:58.140 9063 9078 E ACRA : Caused by: java.security.cert.CertificateException: Chain validation failed
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.verifyChain(TrustManagerImpl.java:610)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:444)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:464)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:508)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:401)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:375)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.getTrustedChainForServer(TrustManagerImpl.java:304)
10-08 09:29:58.140 9063 9078 E ACRA : at android.security.net.config.NetworkSecurityTrustManager.checkServerTrusted(NetworkSecurityTrustManager.java:94)
10-08 09:29:58.140 9063 9078 E ACRA : at android.security.net.config.RootTrustManager.checkServerTrusted(RootTrustManager.java:88)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.Platform.checkServerTrusted(Platform.java:178)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.verifyCertificateChain(OpenSSLSocketImpl.java:596)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
10-08 09:29:58.140 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:357)
10-08 09:29:58.140 9063 9078 E ACRA : ... 20 more
10-08 09:29:58.140 9063 9078 E ACRA : Caused by: java.security.cert.CertPathValidatorException: timestamp check failed
10-08 09:29:58.140 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:127)
10-08 09:29:58.140 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:215)
10-08 09:29:58.140 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:143)
10-08 09:29:58.140 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:79)
10-08 09:29:58.140 9063 9078 E ACRA : at java.security.cert.CertPathValidator.validate(CertPathValidator.java:301)
10-08 09:29:58.141 9063 9078 E ACRA : at com.android.org.conscrypt.TrustManagerImpl.verifyChain(TrustManagerImpl.java:606)
10-08 09:29:58.141 9063 9078 E ACRA : ... 32 more
10-08 09:29:58.141 9063 9078 E ACRA : Caused by: java.security.cert.CertificateExpiredException: Certificate expired at Fri Sep 29 10:03:00 GMT+01:00 2017 (compared to Sun Oct 08 09:29:58 GMT+01:00 2017)
10-08 09:29:58.141 9063 9078 E ACRA : at com.android.org.conscrypt.OpenSSLX509Certificate.checkValidity(OpenSSLX509Certificate.java:234)
10-08 09:29:58.141 9063 9078 E ACRA : at sun.security.provider.certpath.BasicChecker.verifyTimestamp(BasicChecker.java:194)
10-08 09:29:58.141 9063 9078 E ACRA : at sun.security.provider.certpath.BasicChecker.check(BasicChecker.java:144)
10-08 09:29:58.141 9063 9078 E ACRA : at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:119)
10-08 09:29:58.141 9063 9078 E ACRA : ... 37 more
I'm experiencing channels crashing occasionally, and I decided to check logcat to see if anything stood out. However, it seems like your crash reporting library is failing to send reports to you. Looking into it, if the reports are being sent to your domain, you're using a self-signed TLS cert which will cause this class of error. This should be easily remedied by using something like https://letsencrypt.org/ to generate new certs backed by a known CA.