Can Not Connect top nextcloud Server

[Vortex2203]

⚠️ Before posting ⚠️

• [X] This is a bug, not a question or an enhancement.
• [X] I've searched for similar issues and didn't find a duplicate.
• [X] I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
• [X] I agree to follow Nextcloud's Code of Conduct.

Steps to reproduce

Connect to nextcloud Not possible App crashed

Expected behaviour

Cause of error

Exception in thread "main" java.lang.NullPointerException: Attempt to invoke virtual method 'android.widget.LinearLayout com.owncloud.android.databinding.SslUntrustedCertLayoutBinding.getRoot()' on a null object reference
    at com.owncloud.android.ui.dialog.SslUntrustedCertDialog.onCreateDialog(SslUntrustedCertDialog.java:173)
    at androidx.fragment.app.DialogFragment.prepareDialog(DialogFragment.java:665)
    at androidx.fragment.app.DialogFragment.onGetLayoutInflater(DialogFragment.java:579)
    at androidx.fragment.app.Fragment.performGetLayoutInflater(Fragment.java:1752)
    at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:493)
    at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:261)
    at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1899)
    at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1817)
    at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1760)
    at androidx.fragment.app.FragmentManager$5.run(FragmentManager.java:547)
    at android.os.Handler.handleCallback(Handler.java:938)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loopOnce(Looper.java:226)
    at android.os.Looper.loop(Looper.java:313)
    at android.app.ActivityThread.main(ActivityThread.java:8669)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135)

App information

• ID: com.nextcloud.client
• Version: 30220190
• Build flavor: gplay

Device information

• Brand: samsung
• Device: c1s
• Model: SM-N980F
• Id: SP1A.210812.016
• Product: c1seea

Firmware

• SDK: 31
• Release: 12
• Incremental: N980FXXS5FVI4

Actual behaviour

Can Not Connect top cextcloudserver

Android version

12

Device brand and model

Samsung Note 20

Stock or custom OS?

Stock

Nextcloud android app version

3.22.1

Nextcloud server version

1.50.3

Using a reverse proxy?

No

Android logs

No Log

Server error logs

### Cause of error

Exception in thread "main" java.lang.NullPointerException: Attempt to invoke virtual method 'android.widget.LinearLayout com.owncloud.android.databinding.SslUntrustedCertLayoutBinding.getRoot()' on a null object reference
    at com.owncloud.android.ui.dialog.SslUntrustedCertDialog.onCreateDialog(SslUntrustedCertDialog.java:173)
    at androidx.fragment.app.DialogFragment.prepareDialog(DialogFragment.java:665)
    at androidx.fragment.app.DialogFragment.onGetLayoutInflater(DialogFragment.java:579)
    at androidx.fragment.app.Fragment.performGetLayoutInflater(Fragment.java:1752)
    at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:493)
    at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:261)
    at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1899)
    at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1817)
    at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1760)
    at androidx.fragment.app.FragmentManager$5.run(FragmentManager.java:547)
    at android.os.Handler.handleCallback(Handler.java:938)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loopOnce(Looper.java:226)
    at android.os.Looper.loop(Looper.java:313)
    at android.app.ActivityThread.main(ActivityThread.java:8669)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135)

### App information
* ID: `com.nextcloud.client`
* Version: `30220190`
* Build flavor: `gplay`

### Device information
* Brand: `samsung`
* Device: `c1s`
* Model: `SM-N980F`
* Id: `SP1A.210812.016`
* Product: `c1seea`

### Firmware
* SDK: `31`
* Release: `12`
* Incremental: `N980FXXS5FVI4`

Additional information

Help please

[AlvaroBrey]

Duplicate of #10868