At first the problem was a mob from champions mod, but now after I deleted the mod it is a server tick. I see that in other situations it is one part of the server that makes a loop but I do not know which part. If someone could find help me detect what is the problem it would help a lot. Thank you.
crash report:
https://drive.google.com/file/d/1eEPXUSpmmiDwzGcDv7ik6hTHOX_WWhFC/view?usp=sharing