Correct the error in my android application + insert two buttons in the game.

Hello, excuse my English. I need to correct the error in my android application. Must also insert two buttons in the game. CORRECTING ERROR At the end of the application when the user completes all questions "quiz" the following error occurs: [login to view URL] Necessary that the error should be corrected .He should no longer appear, regardless of the number of questions that I add in database application. INSERT 2 BUTTONS I need to be inserted two buttons in the game IMAGE: [login to view URL] Button "reset game" - by clicking the button, play back the settings [login to view URL] the user is on level 20 of the game, by clicking the button, the game will return to level 1 Button "return to menu" - By clicking this button, the player returns to the game menu, but if it has at some level (eg level 30) the game by clicking the "return to menu" button, go back to the menu and click the "play" button, it will still be at level 30 of the game