Back to shop issue with sparky framework template

Back to shop issue with sparky framework template

I am testing sparky framework template from hotthemes.

when I click on back to shop from the cart:
http://www.pub-burger.ch/Test/index.php/component/jshopping/cart/view?Itemid=0

I get this:
http://www.pub-burger.ch/Test/index.php/shop-bestellen/wochen-angebot?css_request=1&diff=1667439575

How do I get this to work?

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Aw: Back to shop issue with sparky framework template

Change url CSS to

http://www.pub-burger.ch/Test/index.php?css_request=1&diff=1667439575

Aw: Back to shop issue with sparky framework template

How do I do that?

and what does that change? I tried that link, but get the same results.

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