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: 24.04.2024 @ 10:16
Script: /board/search.php?action=user&userid=53&sid=769fe10be9ad3a92afc960eed7110294
Referer: