SQL-DATABASE ERROR

Database error in (): Link-ID == false, connect failed
mysql error:
mysql error number:
mysql version: unknown
php version: 7.4.33-nmm5
Date: 21.07.2024 @ 01:32
Script: /wbb2/index.php/banner/js/board.php?boardid=111%3Fsid%3D299a681c9eefe72a78ccfd3df7e8dbe9
Referer: