Fly to Cart not working and sidbar not opening

Hi there,

i just bought the premium version of the all in one add to cart plugin. Unfortunately, the fly to cart effect doesnt work for me and the cart doesnt open after adding a custom product to cart. Only the old cart page opens but that is, what i want to get rid of. I think it might be related to my theme or plugins. Could you please help me finding out the issue and resolving it?

Thanks in advance!