When I try pay_response.success?, I get this error
You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.
I used the sample code using a new PaypalAdaptive::Request and then using pay_respond = pay_request.pay(data).
I'm using the sandbox account, and I set up my .yml without a ssl cert file. Am I doing something wrong?