Hi there,
I have an issue here on my 24/7 shack machine with mariadb & CQRLOG 2.4.0 & Ubuntu 20.04 LTS:

After some hours of no activity, when I click some action that triggers a db-request I get:
TMySQL57Connection : Error executing query: MySQL server has gone away.
Press OK to ignore and risk data corruption.
Press Abort to kill the program.

If I abort and restart everything's fine. The dbserver does not need any action from my side.