[SCHEDULER] Exception thrown whilst executing task

Please upload a complete server log from startup to issue occurance, and specific steps to reproduce the issue(s).

For example, "when hitting mob X with any weapon, the error happens" or "when a survival player logs in the random spawns begin causing errors"

i make a videos to display my error Whenever my monster takes a lot of damage it will give me an error!! If there are only about 30 monsters, there will be no jump error. However, as long as the number of monsters > 50, there will be a jump error.

I have tested spawner and it works fine. https://youtu.be/FJ7Dl8ZhSaQ?si=5J1OQifejLA5QXJ3 here,s my log [Legacy attachment omitted]

This is likely an issue in the server software side (spigot, paper, etc...), try to update to latest server jar version and check if the issue persists