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 @ 10:14
Script: /board/board.php?boardid=13&sid=555e1a1e77dfa6bea4537634c0868122
Referer: