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 @ 14:16
Script: /board/search.php?action=user&userid=3&sid=5e0d9de17b5a4fb1bd9622c4c8d314a5
Referer: