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 @ 10:21
Script: /board/usercp.php?action=addsubscription&boardid=7&sid=388caa656b8df3386664b7e231021564
Referer: