Internal Server Error: /api/store/

Stacktrace (most recent call last):

  File "django/core/handlers/base.py", line 111, in get_response
    response = callback(request, *callback_args, **callback_kwargs)

  File "django/views/decorators/http.py", line 45, in inner
    return func(request, *args, **kwargs)

  File "django/views/decorators/cache.py", line 79, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)

  File "django/views/decorators/csrf.py", line 39, in wrapped_view
    resp = view_func(*args, **kwargs)

  File "django/views/decorators/csrf.py", line 52, in wrapped_view
    return view_func(*args, **kwargs)

  File "sentry/web/api.py", line 55, in wrapped
    response = func(request, project, *args, **kwargs)

  File "sentry/web/api.py", line 151, in store
    insert_data_to_database(data)

  File "sentry/coreapi.py", line 328, in insert_data_to_database
    maybe_delay(store_event, data=data)

  File "sentry/utils/queue.py", line 32, in maybe_delay
    return func(*args, **kwargs)

  File "celery/app/task/__init__.py", line 262, in __call__
    return self.run(*args, **kwargs)

  File "sentry/tasks/store.py", line 19, in store_event
    Group.objects.from_kwargs(**data)

  File "django/db/transaction.py", line 217, in inner
    res = func(*args, **kwargs)

  File "sentry/manager.py", line 485, in from_kwargs
    send_group_processors(group=group, event=event, is_new=is_new, is_sample=is_sample)

  File "sentry/processors/base.py", line 17, in send_group_processors
    maybe_delay(post_process_group, group=group, **kwargs)

  File "sentry/utils/queue.py", line 32, in maybe_delay
    return func(*args, **kwargs)

  File "celery/app/task/__init__.py", line 262, in __call__
    return self.run(*args, **kwargs)

  File "sentry/tasks/post_process.py", line 22, in post_process_group
    safe_execute(plugin.post_process, group=group, **kwargs)

  File "sentry/utils/safe.py", line 31, in safe_execute
    transaction.savepoint_commit(sid)

  File "django/db/transaction.py", line 182, in savepoint_commit
    connection.savepoint_commit(sid)

  File "django/db/backends/__init__.py", line 240, in savepoint_commit
    self._savepoint_commit(sid)

  File "django/db/backends/__init__.py", line 80, in _savepoint_commit
    self.cursor().execute(self.ops.savepoint_commit_sql(sid))

  File "django/db/backends/postgresql_psycopg2/base.py", line 44, in execute
    return self.cursor.execute(query, args)