[PrestaShopException]

VlastnosÅ¥ Product->upc nie je platná
at line 1046 in file classes/ObjectModel.php

1041.             }
1042. 
1043.             $message = $this->validateField($field, $this->$field);
1044.             if ($message !== true) {
1045.                 if ($die) {
1046.                     throw new PrestaShopException($message);
1047.                 }
1048. 
1049.                 return $error_return ? $message : false;
1050.             }
1051.         }