https://pastebin.com/nDrEBLe2

Please provide actual information like server/proxy type, version, LP version and what you tried so far.
We can't read minds and just posting errors won't give us enough information

Need to see your full startup log please.

Also, please try setting this to true & restarting your proxy.

https://github.com/lucko/LuckPerms/blob/5577e3f59068a10d80201a6e07e60f620e5c654f/bukkit/src/main/resources/config.yml#L554-L557

Then wait for the error to occur again & send that log over.