Fixed bug that crashes app when a valid response is not received.
Fixed bug that crashes app when a valid response is not received.

The response callback function sometimes does not have valid product
data. In these cases, the application would attempt to use the info from
the invalid array and this would cause crashes. Now, if the array
contains invalid data, the data is not used at all.

Signed-off-by: Byron Sanchez <6685d7b842d5f719c80dba2d9b7b92fbac715e4a@gmail.com>

byronsanchez/creepypasta-files-ios,byronsanchez/creepypasta-files-ios