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 @ 15:20
Script: /board/addreply.php?postid=15082&action=quote&sid=626741f597b345b7f6fbe54e521fec09
Referer: