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: 24.04.2024 @ 10:31
Script: /board/usercp.php?action=addsubscription&boardid=11&sid=a2f8d9d06d017a0416d1770c58cb7586
Referer: