Application I created automatically closes

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1

I want to ask, why when I enter the Google Form link the application I created automatically closes, what should I fix, thank you

2

Please share blocks image of your app!

3

image
image1219×795 111 KB

4

Its not about the blocks, what components and extensions are you using on screen1 enlist them.

5

Thank you very much, the problem has been resolved, I have to add the viewer extension