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: 25.04.2024 @ 01:17
Script: /board/addreply.php?postid=14840&action=quote&sid=f73a621ee90b7d900d8979180b42612e
Referer: