MYSQL | Database Wont Connect To Bungee MySQL

So the title basically says it all, the "Lobby" server wont connect to "bungee" server database for some reason.
Code:
========== UNABLE TO LOAD PERMISSIONS BACKEND =========
Your configuration must be fixed before PEX will enable
Details: Unable to connect to SQL database
=======================================================
ru.tehkode.permissions.exceptions.PermissionBackendException: Unable to connect to SQL database
at...

MYSQL | Database Wont Connect To Bungee MySQL