I am having problems with my paypal checkout. I need help seeing it up. For some reason it doesn't work most of the files are copied over from a different server the previous person that used to own it. I think I only transferred over the design though not the paypal setup so I may need to redo it.

The site is enigmahair.ca or to be more specific shop.enigmahair.ca now when u try to checkout it send u to a blank page. Also sends u there after u sign up. Could someone help me with this? i checked all over the admin for paypal setup got nothing.