Crash when using Contraptions from Create - 1.16.5

[Foxydapirate12]

Hello, i'm running a server, and every few minutes it seems to crash and both Server Utils and Create are both named Specifiaclly so perhaps there's a compatability issue, here's the Crash-report: https://gist.github.com/Foxydapirate12/94ad9dea705a91525644db3e1ff448fc