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: 20.04.2024 @ 02:35
Script: /board/thread.php?goto=lastpost&threadid=22&sid=d660e4f47065a6a7f35804f1fe4c1de5
Referer: