Unable to make purchase

I am legally blind and trying to buy a white mountain ice cream freezer but when I try to purchase it the screen turns blank on my iPad. Can you call 

Greetings.

Are you trying to make a purchase on the form that is created with JotForm? Could you please let us know the URL of the form you are trying to fill so we could test it and hopefully provide you with a solution?

Thank you for your cooperation.