Clicking on a new screen after moving from one screen to another opens the previous screen again and a runtime exception error occurs.
Are you switcing screens correctly ? What is the error ? Post a screenshot
When I click on the play quiz button, the screen of another quiz opens.
second “Quiz” Screen
When I click on the quiz button, then the first screen opens.
block screen sort
Can tell what causing the problem, use logcat to identify what causing the crash
Switch screens correctly!
See also tip 1 and 2 here