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: 24.04.2024 @ 01:45
Script: /board/addreply.php?postid=14699&action=quote&sid=cf65ebb70f278418d0f95289e8c9830c
Referer: