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 @ 21:04
Script: /board/search.php?action=user&userid=3&sid=75935f32cb9b7519d0dd31288b07659f
Referer: