Have been scavenging the internet for a few hours looking for a fix gone from deleting .json files (whitelist, ops, etc.) to removing mods but my issue lies when I join the server rather than actually starting it up. Anytime I join after startup it crashes immediately and gives the following logs. Have followed a few others with similar issues however their servers are crashing right on startup rather than when they join.
Running MC 1.12.2 and Forge 14.23.5.2860
Logs are here.
https://github.com/AliiAlman/server-logs.git
Edit for some potentially relative information: Modpack is Project Ozone 3, my friend was able to join as he was away from home base but as he got to base it crashed the server.