Traceback:
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  132.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  57.         response = view_func(request, *args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/django/views/decorators/csrf.py" in wrapped_view
  58.         return view_func(*args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/apps/django_app/utils.py" in wrapper
  51.             return func(request, backend, *args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/apps/django_app/views.py" in complete
  28.                        redirect_name=REDIRECT_FIELD_NAME, *args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/actions.py" in do_complete
  43.         user = backend.complete(user=user, *args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/backends/base.py" in complete
  41.         return self.auth_complete(*args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/utils.py" in wrapper
  229.             return func(*args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/src/npoed-sso-edx-client/sso_edx_npoed/backends/npoed.py" in auth_complete
  80.         return super(NpoedBackend, self).auth_complete(*args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/utils.py" in wrapper
  229.             return func(*args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/backends/oauth.py" in auth_complete
  382.                             *args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/src/npoed-sso-edx-client/sso_edx_npoed/backends/npoed.py" in do_auth
  117.         return self.strategy.authenticate(*args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/strategies/django_strategy.py" in authenticate
  96.         return authenticate(*args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/django/contrib/auth/__init__.py" in authenticate
  74.             user = backend.authenticate(**credentials)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/backends/base.py" in authenticate
  82.         return self.pipeline(pipeline, *args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/src/npoed-sso-edx-client/sso_edx_npoed/backends/npoed.py" in pipeline
  88.             pipeline=self.PIPELINE, pipeline_index=pipeline_index, *args, **kwargs
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/backends/base.py" in pipeline
  85.         out = self.run_pipeline(pipeline, pipeline_index, *args, **kwargs)
File "/home/pavel/work/npoed/npoed-plp-edx/.env/local/lib/python2.7/site-packages/social/backends/base.py" in run_pipeline
  112.             result = func(*args, **out) or {}
File "/home/pavel/work/npoed/npoed-plp-edx/npoed_plp/plp/auth.py" in update_user
  70.                 date_of_birth = datetime.strptime(date_of_birth, DATE_OF_BIRTH_FORMAT).date()

Exception Type: TypeError at /complete/npoedsso/
Exception Value: strptime() argument 1 must be string, not None