I tried to register and got the following error:

500 Error Occurred. Server error, we have been alerted, please try again later.

Create and clarify term project Requirements.
Make use of the Wiki for documentation.
Use an appropriate requirement format (grouped and enumerated in the very least).

Make a reseach about public API and document the experience

Prepare draft project plan using project libre.

Prepare mockups for your requirements.

Create SignUp model and register it to the admin.

When I tried to login

Forbidden (403)
CSRF verification failed. Request aborted.

More information is available with DEBUG=True.

Setup "Projects" Feature of GitHub to be able to track and manage on going tasks and issues.

Contact form mail body only shows hello message.
Change the content with user provided text message.

Create labels in order to better manage issues