Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, int given in /var/www/vhosts/pd81.net/subdomains/lizenzmanager/httpdocs/inc/class_db_mysql.php:195 Stack trace: #0 /var/www/vhosts/pd81.net/subdomains/lizenzmanager/httpdocs/inc/class_db_mysql.php(195): mysqli_query() #1 /var/www/vhosts/pd81.net/subdomains/lizenzmanager/httpdocs/global.php(145): db->query() #2 /var/www/vhosts/pd81.net/subdomains/lizenzmanager/httpdocs/index.php(17): require('...') #3 {main} thrown in /var/www/vhosts/pd81.net/subdomains/lizenzmanager/httpdocs/inc/class_db_mysql.php on line 195