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: 27.04.2024 @ 00:20
Script: /board/addreply.php?postid=11775&action=quote&sid=495977baa121b6d9ecb6c372d19fcd31
Referer: