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: 08.05.2024 @ 02:47
Script: /board/editpost.php?postid=11775&sid=495977baa121b6d9ecb6c372d19fcd31
Referer: