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 @ 02:44
Script: /board/thread.php?goto=lastpost&threadid=16&sid=4a71bf1d061cd8059b652b0c52ea238c
Referer: