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: 24.04.2024 @ 07:16
Script: /board/search.php?action=user&userid=3&sid=926c7207a57f24ed36996f54f52cce07
Referer: