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: 25.04.2024 @ 12:16
Script: /board/addreply.php?threadid=951&sid=87da9ab645da58a50aa1745325a62707
Referer: