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: 29.03.2024 @ 07:27
Script: /board/board.php?boardid=1&sid=02bde56e635a203792266fd5d4b90df2
Referer: