AttributeError at /admin/imagestore/album/add/

[ramast]

Got error after fresh installation of the test_project.

• pip install -r requirements.txt
• assign MEDIA_URL and MEDIA_ROOT dir.
• run migrate
• create superuser
• try to add first album

Internal Server Error: /admin/imagestore/album/add/
Traceback (most recent call last):
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/core/handlers/base.py", line 149, in get_response
    response = self.process_exception_by_middleware(e, request)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/core/handlers/base.py", line 147, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/contrib/admin/options.py", line 541, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/contrib/admin/sites.py", line 244, in inner
    return view(request, *args, **kwargs)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1437, in add_view
    return self.changeform_view(request, None, form_url, extra_context)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/utils/decorators.py", line 67, in _wrapper
    return bound_func(*args, **kwargs)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/utils/decorators.py", line 63, in bound_func
    return func.__get__(self, type(self))(*args2, **kwargs2)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/utils/decorators.py", line 184, in inner
    return func(*args, **kwargs)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1393, in changeform_view
    formsets, inline_instances = self._create_formsets(request, form.instance, change=False)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1726, in _create_formsets
    'queryset': inline.get_queryset(request),
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1877, in get_queryset
    queryset = super(InlineModelAdmin, self).get_queryset(request)
  File "/home/ramast/Desktop/sc/imagestore/test/testproject/env/lib/python2.7/site-packages/django/contrib/admin/options.py", line 321, in get_queryset
    qs = self.model._default_manager.get_queryset()
AttributeError: type object 'Image' has no attribute '_default_manager'