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 @ 08:03
Script: /board/addreply.php?threadid=16&sid=c028afd278181c9ec639aed43b01d369
Referer: