I have tried a number of methods on the per server settings, however, I have been unable to get it set up. Currently they are set up to a database, whenever I do /lp networksync it comes up with https://i.imgur.com/uOyvB2Q.png

There are settings come up, I have tried changing it. They are set up on MySQL at the moment with luckperms installed on all servers. What am I missing?

If you're using the latest version of LP and using MySQL for storage, then the plugin should automatically enable an SQL messaging service.

Could you send over the logging output you get when LP enables on that server?