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 @ 04:54
Script: /board/search.php?action=user&userid=20&sid=58b5c9568bc56c3d5f785bd0ebc67a3e
Referer: