Error Al cargar apk el cambio de pantalla me friza la app

Bugs and Other Issues
1

todo funcia en el emulador pero cuando instalo el apk abre y al cambiar de pantalla se me friza y manda a vovler a cargar pero se friza todo y no carga la aplicacion quien me ayuda pork no me pasa con la primera que hice

2

Send an image of the blocks that make the Screen change.

3

cap
cap1097×517 48.8 KB
cap2
cap2858×375 20.9 KB

there is from bottom to top screen1 and screen2

4

when it is installed normal it opens normal and when it does the screen change it frizzes

5

If the lblNumbero is equal to or greater than 100, the Radio screen continuously opens and the app is blocked.

Try set Timer Enabled = false, before abrir otra pantalla Radio

6

cap3
cap3808×244 25.1 KB
something like these blocks that work for me which is from the first app

7

before switching screens stop the clock and use the recommended method of switching screens
The recommended method of switching screens in App Inventor
Taifun

Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.