My App always crashing when i open screen second time

bug
howto

#1

i have problem - when i start app sceen1(home) open than click on button 1 to go screen2 , screen 2 open and work well then i close screen2 and go to home screen(1) now if i click on button 2 for opening screen 3 app close automatically (crash) . if i open app and click on button 2 for going screen 3 it open now . what should i do .Screen1 block im

age is given please solve anyone .

screen 2

screen3


App always crashing when i open screen second time