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: 26.04.2024 @ 22:01
Script: /board/search.php?action=user&userid=10&sid=8c1bcaaed7d4a8c9503867771949e7ae
Referer: