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 @ 05:43
Script: /board/usercp.php?action=addsubscription&boardid=13&sid=e0e3c89617cb117294ed976efe946cf6
Referer: