Hey there!
I doub that has anything to do with CoffeeProtect since so far i've never received any similar reports and the error doesn't point anywhere to coffee protect.
If it still occurs, i'd recommend u take a look at some other stuff such as ur jvm setup, plugins and general server settings
If u're still having issues join our discord so i can verify you after you make a ticket. and i'll support you properly to solve your issue!