Play store rejected my app

I have created whatsapp status story app and trying to upload to play store but each time my app rejected due following play store policy. What blocks i have add and what steps to take to successfully upload it…
need help plz…
Blocks which i have used in my app

Policy issues

Your app has the following policy issues. Fix the violations and make sure that your app meets all policy requirements before resubmitting.

Issues found 1,2, and 3

Action required

Your app is rejected because You are asking this permission “MANAGE_EXTERNAL_STORAGE”
Which is very critical permission and give access to all device storage. And google said that your app doesn’t need this permission as your app core feature is not related to this permission.
And you used Deephost extension and the query related to his extensions are in pending as he didn’t respond.

What i can do now? Plz suggest…

You can export your app to apk then change its mainfest.xml android:minSdkVersion=’‘7’’ and then change android:targetSdkVersion=’‘28’’.

Then how i can convert it to .aab file to upload it playstore?

just edit the aab file only
(For more information visit - Edit or Modify the AAB file - change API 29 to 30 android 11)

for apps which should be uploaded to Google Play this is the wrong advice…
Google Play only accepts targetSdkVersion 30 or higher