The App Crashes On Clicking Start Translating After Entering the Incomplete Repository URL

Expected behavior

The app should be stable on entering the incomplete Repository url and must not crash.

Actual behavior

When I enter https://github.com in the Repository adress and click Start Translating the app crashes.

How to reproduce

1. Install the app from F-Droid.
   
2. Launch the apl and click on Add Project. (Make sure you are connected to internet)
   
3. Enter https://github.com in the Repository section and click on Start Translating.
   
   The app crashes.
   

• App Version: 0.14
  
• Device: Samsung Galaxy J5
  
• Operating System: Android 6.0.1

Recording Of The Bug

The video recording of the bug.