After customized modifications of VM, there is an error coming up:
When update a product from VM backend, the price is blank; if save the product without any change, the price will change to 0 (If input a number in the price box, it can be saved correctly.) and also got the following error:
Fatal error: Call to a member function query() on a non-object in /home/sumsale/public_html/administrator/components/com_virtuemart/classes/ps_product.php on line 655
Although when click “back” from the error page and go the the product list, the newly added data are saved correctly.
