java.lang.InstantiationException: java.lang.Class<org.edx.mobile.util.Config$ApiUrlVersionConfig> has no zero argument constructor

I am trying to build and run the android app https://github.com/edx/edx-app-android
I could build, run the application. Also I can login and view the enrolled courses. But app is crashing as soon as I click on any enrolled courses. I have attached the complete stack trace below.
Stacktrace