Info on payment system

Info on payment system

Hi I'm developing a website but I'v a problem with the configuration of the payments system tab. When I go in Components/joomshopping/options/payments I have created a payments system called PAGAMENTO ANTICIPATO (in english payments in advance), but if I click on the Configuration tab I see a blank page, while in the paypal system there'n no problem. Why? I have also installed a clean version of joomla and joomshopping but the problem is not resolved. Isn't it a joomshopping bug? I attach an image

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Aw: Info on payment system

for example see folder
components/com_jshopping/payment/pm_paypal

Aw: Info on payment system

Thanks for reply. I explain the problem better. In joomshopping there are five default payments system as:

-Cash on Delivery

-Advance Payment

-PayPal

-Debit

-Sofortueberweisung.

I want use the first three but when I click on tab Configuration in the system cash on deliver and advance payment I see a blank page. I tried to resolve the problem installing from scratch Joomla and joomshopping in a new installation but the problem persist. I thought it were a bug. I tried In local and remote. I attach two screen shots of the problem. Thanks

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Aw: Info on payment system

No bug.
Configuration only for 'external' payment system.
Example: paypal.


Advance Payment - no configuration.

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