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: 19.04.2024 @ 12:37
Script: /board/usercp.php?action=addsubscription&boardid=6&sid=370daa3756b9bcdc1383e80ed42cfb05
Referer: