Web Mail is not loading round cube?

Can you please help in this I am getting this error

When I click to connect with my webmail
Do I need to uninstall round cube and reinstall or it can be solved

MariaDB running

Yes Its active and running

never heard anything back

to less informations here, check if database exists, check if creds in /etc/roundcube are valid and fits to the db, check the logs for more informations and so on.