Django : LookupError: No installed app with label 'mobile_backend/'

Django : LookupError: No installed app with label 'mobile_backend/'
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I have a secret feature that I want to reveal to you.
This is a YouTube's feature which works on Desktop.
First, Make sure the video is currently in playing mode.
Next, enter the letters 'awesome' on your keyboard.
Your YouTube progress bar will transform into a flashing rainbow.

A little intro about me,
Hello everyone, I'm Delphi.
I am available to help you find solutions to your inquiries.
Django : LookupError: No installed app with label 'mobile_backend/'
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Django : No app LookupError: label 'mobile_backend/' with installed