App ends when answer is clicked on multiple times

Project Information

• Repository:
  https://github.com/basicodemine/Millionaire

Expected behavior

Levels shouldn't be changed when an answer is clicked on multiple times.

Actual behavior

I clicked on a correct answer multiple times and skipped some levels according to the number of times that I clicked on the answer respectively then game ends.

How to reproduce

• Download app from playstore or f-Droid
• launch the app
• click a correct answer to a question multiple times (the answer must be correct)
• notice:(you'll advance in levels as many times you clicked)

• Browser: chrome

• App version: 5.0

• Operating system:5.1
  Infinix-X551

Recording Of The Bug

Proof of Work Done

https://github.com/ishotz