App not installed as package apears to be invalid

After adding this extension : PushNotification
, I was no longer able to install the application on the phone, and this message appeared.

" App not installed as package appears to be invalid "
com.jdl.PushNotification.aix|attachment (1.6 MB)
[extension url removed by mod, only the author is allowed to post aix here.]

android:exported="true" is missing for activities, broadcast receivers in manifest file

Purchase a paid Onesignal extension.