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 @ 04:42
Script: /board/search.php?action=user&userid=66&sid=03918201e2ab8094cfb012facfd5f47a
Referer: