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: 19.04.2024 @ 09:09
Script: /board/search.php?action=user&userid=8&sid=6f018b64ccb7ec193cb9f551ce73f802
Referer: