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: 26.04.2024 @ 10:46
Script: /board/markread.php?sid=56c0c37d670b51c1cfc3f984642f32f7
Referer: