Django newbie - encountering Unhandled Exception

Django newbie - encountering Unhandled Exception
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#1

I cannot seem to find or believe that this hasn’t been encountered as an item in the forums. Anyways, I’ve recently started the Python Django Web Framework - Full Course for Beginners video on YouTube and I am about 40 minutes in which is at the point I’ve created a very fundamental App component.

It seems that if I let the system go to sleep for some time and possibly when I relocate to another location’s wifi, everything that I had left open, Django server running, SublimeText and Powershells open; I can no longer continue where I left off. I get an error if I try to makemigrations for any updates made thru Sublime. Again if I execute python manage.py runserver I will get this error.

Unhandled Exception in thread started by <function check_errors.<locals>.wrapper at 0x000000359076A2F0>
Traceback .......etc

To get back to where I was I have to delete the contents of the ‘src’ folder within the ‘/dev/trydjango/’ folder and then execute django-admin startproject <proj> . and then python manage.py runserver

This seems ridiculous, I know something isn’t right. Please advise.