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: 28.03.2024 @ 07:55
Script: /board/usercp.php?action=addsubscription&threadid=651&sid=8dbe0a8157aa011766297e1d85654319
Referer: