Everytime i join the server, after a few seconds it crashs, the logs says it has something to do with the plague beast, chicken mount and beast mount, im playing in the 7.2.0-1.16.5 version.

1.16 is unsupported, but I also cant do anything with just this. I would need a crashlog or a latest.log file to actually diagnose whats going on.

In the future, when reporting crashes to any mod, PLEASE attach a crash report. There are an infinite amount of factors that could cause a crash and some of them arent even the mod thats crashing's fault