Solved Resolve this activity log message

[VoipX]

On my activity log I get about every 2 minutes this message:

Exception: basic_string::_S_construct null not valid

Any idea where this is coming from?
I am on 15.5.3554.1
Thanks.

 

[YiannisH_3CX]

Hello @VoipX

I will send you a personal message to send me logs of the PBX to check where the error is coming from.

 

[YiannisH_3CX]

For those that may face the same or a similar issue the error was coming from manually configured Yealink phone with unsupported firmware. Once the phone was configured correctly the error went away.
Thank you for reporting this