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: 01.05.2024 @ 21:48
Script: /board/thread.php?goto=lastpost&threadid=761&sid=5f10801b7a4e701f167a145f33b1e8e6
Referer: