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 @ 21:46
Script: /board/usercp.php?action=addsubscription&boardid=24&sid=905ea882d7adab2b827c49c2617e3d41
Referer: