I have a server (bungee) where you must restart a minigame at the end of a game.
What happens is that I put luckperms on all servers and connected it to MySQL and I receive this error on that server.

Can you provide logs of the server you're trying to connect to?

Please provide the logs as Tobi asked you to do so, through a page like https://paste.helpch.at.
Those screenshots are pretty much unreadable.

https://paste.helpch.at/arajosikeg.sql

Issue is with your MySQL server, not LuckPerms.

 message from server: "Host 'Ip' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"