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: 27.04.2024 @ 02:06
Script: /board/markread.php?sid=3d800f2ecfd60586e6e4c2be636f7e55
Referer: