Failed to initialize database backend

[ElTuna]

Help request

Problem

What I have tried

I have a Paper server running Paper 1.19.3 (called Leaf)
MarriageMaster version is 2.7.1-SNAPSHOT
the server is in a network and shares database with the hub.
I'm getting this error when i start the server [https://gist.github.com/ElTuna/826dae9593a00d83ff016e7bccacee50]

and when i run /marry list it throws me the message Only "/marry reload" is available at the moment!
when i run /marry reload it shows me this in console [https://gist.github.com/ElTuna/761bcb0a991c82bc45be1f77b861f068]

I tried changing the config at �Database.SQL.MaxConnections to many number from 6 to 1 but the error continued.

Weird thing is the database has no problems in the hub server (and both server have the same config but the server name.)

This is the config (with hidden db data) [https://gist.github.com/ElTuna/fcca73bc04d705304b063c62bfc0f158]