Fatal error: Uncaught ValueError: mysqli_query(): Argument #2 ($query) cannot be empty in /hdd1/webroot/hosts/tsu.sk/www/inc/inc.download_files.php:39 Stack trace: #0 /hdd1/webroot/hosts/tsu.sk/www/inc/inc.download_files.php(39): mysqli_query() #1 /hdd1/webroot/hosts/tsu.sk/www/index.php(68): include('...') #2 {main} thrown in /hdd1/webroot/hosts/tsu.sk/www/inc/inc.download_files.php on line 39