SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: The server requested authentication method unknown to the client
mysql error number: 2054
Date: 18.04.2024 @ 22:20
Script: /board/newthread.php?boardid=13&sid=9cdad736fe2cd091bdc9178a1781620b
Referer: