Requested keys of a value that is not an object

[ggunti]

I made the configurations (for Android) described at https://github.com/waqas19921/react-native-paypal
I wrote a function which is called when a Button is pressed: https://s22.postimg.cc/imdbmhx3l/Untitled.png
But i get this error: https://s22.postimg.cc/qrvdl60xd/35744111_634794970202096_1966110859876892672_n.png

What could be the problem?
Thank you!

[vimalN1992]

@ggunti Did you get the solution? I am too getting same issue.