Can't connect to myTeamspeak

I can’t connect to my myTeamspeak account on my computer. But I can connect to the website and on my phone.
That’s the Log:

22.12.2020 11:59:08	ProtobufRPC	Warning	Error contacting URL SSL_ERROR: Alert on protocol: TLS 1.2 level: fatal error: unsupported_certificate (43)	
22.12.2020 11:59:08	ClientUI	Warning	Account login failed, server currently not available. Retry in few minutes.	

I also tried to turn of my firewall and reinstall my teamspeak client.

I hope you can help me.

A post was merged into an existing topic: myTeamspeak synchronization/login fails