The App Crashes On Screen Rotation on the Introduce Page

Expected behavior

The app must be stable on changing the screen orientation in every app interfaces.

Actual behavior

But when i rotate the screen on Introtuce page the app crashes.

How to reproduce

1. Install the app from F-Droid.
   
2. Launch the app and select About from the left sliding navigation menu.
   
3. Click on Introduce option.
   
4. Now change the orientation of the screen to landscape mode.
   
   The app crashes.
   

• App Version: 3.3.1
  
• Device: Samsung Galaxy J5
  
• Operating System: Android 6.0 1

Recording Of The Bug

Video recording of the bug.