Why would django fail with server 500 only when Debug=False AND db is set to production database on Heroku?

Question

When we run $ python manage.py runserver --settings=project.settings.local there are 4 different possible combinations:

1. Debug=True && DB=l

Answer 1

I hope this helps someone someday. I had this similar problems and it took a while before i fixed it. Check your tags. If an href attributes points to a template/link that don't exist. You might encounter such.