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: 26.04.2024 @ 22:10
Script: /board/usercp.php?action=addsubscription&boardid=3&sid=e77c3f555e960b29d27b05a1707a3401
Referer: