orders fail with paypal

orders fail with paypal HELP!!!!!!!

Hi, had joomshopping configured and running smoothly. When I changed the direction of mail order stopped receiving orders (when the payment method is "paypal" if you choose another option no problems).

No order arrives by mail and not on the order list (on the backend), is as if nothing was the order because the car, to return to the site, still full. Probe putting SSL and pulling it out but does nothing ...

The URL to the problem is ayurventas.com/global

I appreciate prompt response! (I used google translate because my English is very basic)

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