The program stops when a new page opens

[Taifun]

@mitapp_inventor_user

I used all kinds of page opener modes but none of them worked

As @ABG already mentioned, you do not switch screens correctly... this would be the first thing to correct...

App Inventor Tutorials and Examples: Manager Screen | Pura Vida Apps

See also tip 1 here

General Tips and Tricks for App Inventor

This list was made by @Taifun Use different screens wisely Before starting to create another screen, first you should think about is it really necessary? See also Building apps with many screens and SteveJG's post about advantages/disadvantages, because in only one screen you also can use vertical arrangements to simulate different screens, just set the arrangements to visible = true/false as needed... If you decided to use different screens, then you should switch them correctly, else you …

Taifun