On some devices (LG Stylus 3 Android 7.0) when you press and move app from desktop to trash can the app does not removed from device. You can restore app trashed by this way later without reinstalling it from Google Play. If it is your case you may see this error:
Error while executing: am start -n "ru.alanov.cashbox/ru.alanov.cashbox.activity.LoginActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.your.app/.activity.MainActivity }
Error type 3
Error: Activity class {ru.alanov.cashbox/com.your.app.activity.MainActivity} does not exist.
Error while Launching activity
when trying to reinstall app from Android Studio thru ADB. Go to Settings -> Applications -> Click on your app and delete it. After it error disappears.