Fatal error: Uncaught TypeError: Argument 1 passed to slevove_kody::getMultiplierByProduct() must be of the type integer, null given, called in /data/web/virtuals/3901/virtual/www/inc/eshop_proces-inc.php on line 1434 and defined in /data/web/virtuals/3901/virtual/www/classes/slevove_kody.php:116 Stack trace: #0 /data/web/virtuals/3901/virtual/www/inc/eshop_proces-inc.php(1434): slevove_kody::getMultiplierByProduct(NULL, NULL, NULL, NULL) #1 /data/web/virtuals/3901/virtual/www/index.php(50): include('/data/web/virtu...') #2 {main} thrown in /data/web/virtuals/3901/virtual/www/classes/slevove_kody.php on line 116