Error saving apphook_config

gistfile1.txt

Environment:


Request Method: POST
Request URL: http://localhost:8000/en/admin/aldryn_newsblog/newsblogconfig/3/?language=en

Django Version: 1.6.10
Python Version: 2.7.6
Installed Applications:
('djangocms_admin_style',
 'djangocms_text_ckeditor',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.admin',
 'django.contrib.sites',
 'django.contrib.sitemaps',
 'django.contrib.staticfiles',
 'django.contrib.messages',
 'cms',
 'menus',
 'sekizai',
 'mptt',
 'djangocms_style',
 'djangocms_column',
 'djangocms_file',
 'djangocms_flash',
 'djangocms_googlemap',
 'djangocms_inherit',
 'djangocms_link',
 'djangocms_picture',
 'djangocms_teaser',
 'djangocms_video',
 'south',
 'reversion',
 'aldryn_categories',
 'aldryn_newsblog',
 'aldryn_people',
 'aldryn_reversion',
 'djangocms_text_ckeditor',
 'easy_thumbnails',
 'filer',
 'parler',
 'reversion',
 'taggit',
 'newsblog_test')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.locale.LocaleMiddleware',
 'django.middleware.doc.XViewMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'cms.middleware.user.CurrentUserMiddleware',
 'cms.middleware.page.CurrentPageMiddleware',
 'cms.middleware.toolbar.ToolbarMiddleware',
 'cms.middleware.language.LanguageCookieMiddleware')


Traceback:
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  112.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/contrib/admin/options.py" in wrapper
  465.                 return self.admin_site.admin_view(view)(*args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
  99.                     response = view_func(request, *args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  52.         response = view_func(request, *args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/contrib/admin/sites.py" in inner
  198.             return view(request, *args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapper
  29.             return bound_func(*args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
  99.                     response = view_func(request, *args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/utils/decorators.py" in bound_func
  25.                 return func(self, *args2, **kwargs2)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/transaction.py" in inner
  371.                 return func(*args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/contrib/admin/options.py" in change_view
  1263.                 self.save_model(request, new_object, form, True)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/contrib/admin/options.py" in save_model
  893.         obj.save()
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/parler/models.py" in save
  531.         super(TranslatableModel, self).save(*args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/aldryn_apphooks_config/models.py" in save
  29.         super(AppHookConfig, self).save(*args, **kwargs)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/base.py" in save
  545.                        force_update=force_update, update_fields=update_fields)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/base.py" in save_base
  573.             updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/base.py" in _save_table
  635.                                       forced_update)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/base.py" in _do_update
  679.         return filtered._update(values) > 0
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/query.py" in _update
  510.         return query.get_compiler(self.db).execute_sql(None)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql
  980.         cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql
  776.             sql, params = self.as_sql()
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in as_sql
  945.                 val = field.get_db_prep_save(val, connection=self.connection)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_db_prep_save
  350.                                       prepared=False)
File "/Users/mkoistinen/.virtualenvs/newsblog_test/lib/python2.7/site-packages/app_data/fields.py" in get_db_prep_value
  56.             value = json.dumps(value)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py" in dumps
  243.         return _default_encoder.encode(obj)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/encoder.py" in encode
  207.         chunks = self.iterencode(o, _one_shot=True)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/encoder.py" in iterencode
  270.         return _iterencode(o, 0)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/encoder.py" in default
  184.         raise TypeError(repr(o) + " is not JSON serializable")

Exception Type: TypeError at /en/admin/aldryn_newsblog/newsblogconfig/3/
Exception Value: <NewsBlogConfigFormAppDataContainer: {}> is not JSON serializable