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: 18.04.2024 @ 08:58
Script: /board/board.php?boardid=4&sid=910880ed96f2532e88032a1dfd8c398a
Referer: