Potential Database Compatibility Issue

[artakservers]

I'm reaching out with an issue regarding our forum software that was previously working on an older server.
We installed The forum that operates on PHP 5.6 and requires MySQL 5.6 compatibility. However, our current server uses a newer version of MariaDB. We're experiencing some compatibility issues that might be due to the database version. The forum software was functioning perfectly on our previous server, so this leads us to believe that the updated database might be causing the issue. However, we cannot confirm that the database version is the definitive source of the problem. Could you please help us by investigating this issue and suggest possible solutions? If possible, is it feasible to run MySQL 5.6 alongside the existing MariaDB on the server?

 

[Zhenyapan]

you can install older mysql manually on another VPS, or on same server but with different data_dir like /var/lib/myql56/ and listening different port, like 3308, also you will manage it manually all from ssh console or via different reconfigured copy of phpmyadmin.