Compliance server Certificate issue

[safeerk]

Dear Guys, Am using a self signed certificate for hosting, on configuration of Compliance am receiving the error message like below:

On the same folder i have the crt and key fie also. Kindly help me

Config as Below:

 # Compliance server compliance.cfg example

external_port = 8008
internal_port = 8009
needs_auth = false
network_passphrase = "Test SDF Network ; September 2015"

[database]
type = "mysql"
url = "root:123456@tcp(localhost:3306)/stellar_compliance"

[keys]

signing_seed = "SBEL63EBNQUTQ2ZTGHGLLXEMP6THALGS3VQ2N4RVHUWIBB5KGDJWVF3R"
encryption_key = ""

[callbacks]
sanctions = "http://localhost:4006/api/Compliances/sanctions"
ask_user = "http://localhost:4006/api/Compliances/ask_user"
fetch_info = "http://localhost:4006/api/Compliances/fetch_info"

[tls]
certificate_file = "server.crt"
private_key_file = "server.key"

[tx_status_auth]
username = "username"
password = "password"

[bartekn]

This is likely an issue with your private key file. Please use Google or ask at Stack Exchange.