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 @ 08:26
Script: /board/addreply.php?postid=11775&action=quote&sid=b57b7f99f731fcc3b92a7f74184789cf
Referer: