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: 19.04.2024 @ 18:51
Script: /board/addreply.php?threadid=951&sid=676aad2dda36bdf5047db5eeb6f849d3
Referer: