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 @ 11:25
Script: /board/misc.php?action=viewip&postid=15082&sid=1fa4b93f4b8f64cac6da2dd1aa43db34
Referer: