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: 23.04.2024 @ 03:40
Script: /board/thread.php?goto=lastpost&threadid=16&sid=acab769b37d8060055429fa1cafff324
Referer: