Any one meet this error what solution

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You won’t get any answers unless you state your problem clearly and without screen photos.

indeed iam not understand what do u mean but my proplem as next : iam student and iam working at project every think is true also my build is secssesfull and i build apk file when i opin in umulater it is just show me massage ( app keep stoping - opine your app again - close your app … mu project about sign up andriod kotlin firbase … so help…