Snappy Mail Authentication failed


I Installed the fresh cyberpanel installation when I created a email with the domain and tried to login with the same it shows
“Authentication failed
Server message: AUTHENTICATIONFAILED Authentication failed.”

I am using VPS server from contabo
OS: Ubuntu 18.04 (64 Bit)

Installed Cyperpanel using below command.
sh <(curl || wget -O -

When I checked for the errors I got below Error:

Sep 14 19:44:42 dovecot[733]: auth-worker(1939): Error: sql(,,<TgoNr6boGLp/AAAB>): Invalid password in passdb: crypt() failed: Invalid argument
Sep 14 19:44:44 dovecot[733]: imap-login: Disconnected (auth failed, 1 attempts in 2 secs): user=<>, method=PLAIN, rip=, lip=, TLS, session=<TgoNr6boGLp/AAAB>

Please someone help me to resolve this. Thanks

Show me the checktls results.

i have the same issue 2 weeks tried to solve it but still there is no solution