Server was running Great...
Server was running Great.... until it wasn't.
This was entirely my fault. I started up a Modded Minecraft server for me and some friends. They are all newish to the modded minecraft so they are pretty easy on the server. I, on the other hand, am well versed. So I went full on speed run to get as much materials as possible. Starting these massive farms so everybody could get enough of whatever materials they may or may not need. I did one too many and broke the server through a build up of entities.
First thing I did was go to their Discord and started a support ticket. Not only were the responses rolling in with very minimal delay, they even looked over my crash logs and helped me diagnose the issues. Then gave me multiple choices, all while, on their own time, help optimise my server settings.