Hello
I'm having several problems with the template, sj-bizshop, it happens that when a customer wants to add an item from the quick view doesn't add any article and a message appears saying that the item was deleted, there is a second problem also when the customer wants to increase the amount of products from my cart and gives the update button no action and stays thinking.
But you also have it in your template in the demo version happens the same does not add any article.
But you also have a problem with the payment methods in your store,I have tried for 3 times to change the subscription plan and when I tried to pay, PayPal and 2checkout, do not work on their website, I have changed browser and pc and follow the same problem I send them a screenshot.
a greeting.
Jorge