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: 16.04.2024 @ 07:56
Script: /board/search.php?action=user&userid=66&sid=143d6478620c520a075e821e6f7dec6e
Referer: