User creation error without password

[Tcremers]

Running the docker images on windows 10.

When I fill out the name/lastname/email on the user creation page on the running web-app without filling out the password fields and then clicking one of the "save" buttons, I get an internal server error and shows me the "500 error" page.

Above the password fields it says "Optionally, you may set the user's password here." So I'm assuming this isn't as intended? It does work fine when I do fill out the password fields. Not sure if there's something wrong with me or no. I only changed the email variables in parkour.env.

Stacktrace from the dockerparkour_parkour-web:latest container logs:

[ERROR] [13/Oct/2020 15:10:04] Internal Server Error: /admin/common/user/add/
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
response = get_response(request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 249, in _legacy_get_response
response = self._get_response(request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python3.6/site-packages/django/contrib/admin/options.py", line 551, in wrapper
return self.admin_site.admin_view(view)(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/contrib/admin/sites.py", line 224, in inner
return view(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 67, in _wrapper
return bound_func(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/views/decorators/debug.py", line 76, in sensitive_post_parameters_wrapper
return view(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 63, in bound_func
return func.get(self, type(self))(*args2, **kwargs2)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 67, in _wrapper
return bound_func(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 63, in bound_func
return func.get(self, type(self))(*args2, **kwargs2)
File "/usr/local/lib/python3.6/site-packages/django/contrib/auth/admin.py", line 103, in add_view
return self._add_view(request, form_url, extra_context)
File "/usr/local/lib/python3.6/site-packages/django/contrib/auth/admin.py", line 131, in _add_view
extra_context)
File "/usr/local/lib/python3.6/site-packages/django/contrib/admin/options.py", line 1508, in add_view
return self.changeform_view(request, None, form_url, extra_context)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 67, in _wrapper
return bound_func(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py", line 63, in bound_func
return func.get(self, type(self))(*args2, **kwargs2)
File "/usr/local/lib/python3.6/site-packages/django/contrib/admin/options.py", line 1408, in changeform_view
return self._changeform_view(request, object_id, form_url, extra_context)
File "/usr/local/lib/python3.6/site-packages/django/contrib/admin/options.py", line 1448, in _changeform_view
self.save_model(request, new_object, form, not add)
File "/usr/src/app/common/admin.py", line 135, in save_model
'user_creation_email.html',
File "/usr/local/lib/python3.6/site-packages/django/contrib/auth/forms.py", line 298, in save
email, html_email_template_name=html_email_template_name,
File "/usr/local/lib/python3.6/site-packages/django/contrib/auth/forms.py", line 252, in send_mail
email_message.send()
File "/usr/local/lib/python3.6/site-packages/django/core/mail/message.py", line 348, in send
return self.get_connection(fail_silently).send_messages([self])
File "/usr/local/lib/python3.6/site-packages/django/core/mail/backends/smtp.py", line 104, in send_messages
new_conn_created = self.open()
File "/usr/local/lib/python3.6/site-packages/django/core/mail/backends/smtp.py", line 64, in open
self.connection = self.connection_class(self.host, self.port, **connection_params)
File "/usr/local/lib/python3.6/smtplib.py", line 251, in init
(code, msg) = self.connect(host, port)
File "/usr/local/lib/python3.6/smtplib.py", line 336, in connect
self.sock = self._get_socket(host, port, self.timeout)
File "/usr/local/lib/python3.6/smtplib.py", line 307, in _get_socket
self.source_address)
File "/usr/local/lib/python3.6/socket.py", line 704, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "/usr/local/lib/python3.6/socket.py", line 745, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -5] No address associated with hostname`