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: 28.03.2024 @ 22:22
Script: /board/search.php?action=user&userid=66&sid=1695b63f8964119e2992ab708dcbdfa4
Referer: