Bugs when install app

I can’t run my app on my phone (RealMe 2 Pro). It’s always error when I install, but when I change to app inventor, it work normal :<
Can anyone help me?

What’s the error?

Look at this, I have checked my code many time, but I can’t find any errors. When I upload the AIA file to AppInventor, it worked normal

Check your min sdk setting at screen 1 and look if your device have minimum this android version. (Or show your settings as picture)
Then clear cache from your apk.
Try again.

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Show your app package name also @anonymous

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