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: 07.07.2024 @ 19:38
Script: /wbb2/index.php/banner/images/js/portalboxen/sbox_img/board.php?boardid=111%3Fsid%3Da1047a34dbac8e5e24100c53b97e79b0
Referer: