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: 29.03.2024 @ 06:09
Script: /board/search.php?action=user&userid=42&sid=98c12f1c129e26ec3d6158970149e630
Referer: