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 @ 21:16
Script: /board/search.php?action=user&userid=8&sid=475e292dd966b0d70f48c56fb4f2ddaf
Referer: