Fatal error: Uncaught Error: Call to a member function getCategoryID() on null in /var/www/web282/html/bontaro/class/Category.php:36
Stack trace:
#0 /var/www/web282/html/bontaro/index.php(41): Category->__construct('muenzen-coins', Object(mysqli))
#1 {main}
thrown in /var/www/web282/html/bontaro/class/Category.php on line 36