Error 500 neo4j

[t4meg]

Hello,

I have installed detective.io on an Ubuntu 14.04 server, at the beginning it was working nice, but since yesterday, I have this error (an no really logs):

[19/Jun/2015 02:29:34] "POST /api/detective/common/v1/user/login/ HTTP/1.1" 200 3597
Internal Server Error: /api/detective/common/v1/user/me/
Traceback (most recent call last):
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 115, in get_response
response = callback(request, _callback_args, *_callback_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 77, in wrapped_view
return view_func(_args, *_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/resources.py", line 195, in wrapper
response = callback(request, _args, *_kwargs)
File "/opt/detective.io/app/detective/topics/common/user.py", line 285, in me
bundle = self.full_dehydrate(bundle)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/resources.py", line 832, in full_dehydrate
bundle.data[field_name] = field_object.dehydrate(bundle, for_list=for_list)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/fields.py", line 731, in dehydrate
return self.dehydrate_related(fk_bundle, self.fk_resource, for_list=for_list)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/fields.py", line 566, in dehydrate_related
return related_resource.full_dehydrate(bundle)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/resources.py", line 832, in full_dehydrate
bundle.data[field_name] = field_object.dehydrate(bundle, for_list=for_list)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/fields.py", line 133, in dehydrate
current_object = current_object()
File "/opt/detective.io/app/detective/models.py", line 668, in nodes_count
def nodes_count (self): return dict([(topic.slug, topic.entities_count()) for topic in self.user.topic_set.all()])
File "/opt/detective.io/app/detective/models.py", line 337, in entities_count
response = connection.cypher(query).to_dicts()[0].get("count")
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4django/db/init.py", line 115, in getattr
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4django/utils.py", line 494, in getitem
conn = Client('http://%s:%d%s' % (db['HOST'], db['PORT'], db['ENDPOINT']), **db['OPTIONS'])
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4django/neo4jclient.py", line 30, in init
super(EnhancedGraphDatabase, self).init(_args, *_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4jrestclient/client.py", line 84, in init
response, content = Request(**self._auth).get(self.url)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4jrestclient/request.py", line 144, in get
return self._request('GET', url, headers=headers)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4django/db/init.py", line 61, in _request
headers)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4jrestclient/request.py", line 306, in _request
body=body)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/init.py", line 1608, in request
(response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/init.py", line 1350, in _request
(response, content) = self._conn_request(conn, request_uri, method, body, headers)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/init.py", line 1272, in _conn_request
conn.connect()
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/init.py", line 916, in connect
self.sock.connect((self.host, self.port) + sa[2:])
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/socks.py", line 424, in connect
self.**negotiatehttp(destpair[0], destpair[1])
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/socks.py", line 390, in __negotiatehttp
raise HTTPError((statuscode, statusline[2]))
HTTPError: (403, 'Forbidden')
[19/Jun/2015 02:29:35] "GET /api/detective/common/v1/user/me/ HTTP/1.1" 500 201180
Internal Server Error: /api/detective/common/v1/summary/mine/
Traceback (most recent call last):
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 115, in get_response
response = callback(request, _callback_args, *_callback_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 77, in wrapped_view
return view_func(_args, *_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/resources.py", line 195, in wrapper
response = callback(request, _args, *_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/resources.py", line 435, in dispatch_detail
return self.dispatch('detail', request, *_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/resources.py", line 458, in dispatch
response = method(request, *_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/resources.py", line 1295, in get_detail
obj = self.cached_obj_get(bundle=basic_bundle, *_self.remove_api_resource_names(kwargs))
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/tastypie/resources.py", line 1113, in cached_obj_get
cached_bundle = self.obj_get(bundle=bundle, *_kwargs)
File "/opt/detective.io/app/detective/topics/common/summary.py", line 83, in obj_get
return self.discover_method(request, kwargs)
File "/opt/detective.io/app/detective/topics/common/summary.py", line 64, in discover_method
content = method(kwargs["bundle"], request)
File "/opt/detective.io/app/detective/topics/common/summary.py", line 224, in summary_mine
matches = connection.cypher(query).to_dicts()
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4django/db/__init.py", line 115, in getattr
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4django/utils.py", line 494, in getitem
conn = Client('http://%s:%d%s' % (db['HOST'], db['PORT'], db['ENDPOINT']), **db['OPTIONS'])
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4django/neo4jclient.py", line 30, in init
super(EnhancedGraphDatabase, self).init(_args, *_kwargs)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4jrestclient/client.py", line 84, in init
response, content = Request(**self._auth).get(self.url)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4jrestclient/request.py", line 144, in get
return self._request('GET', url, headers=headers)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4django/db/init.py", line 61, in _request
headers)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/neo4jrestclient/request.py", line 306, in _request
body=body)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/init.py", line 1608, in request
(response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/init.py", line 1350, in _request
(response, content) = self._conn_request(conn, request_uri, method, body, headers)
File "/opt/detective.io/venv/local/lib/python2.7/site-packages/httplib2/init.py", line 1306, in _conn_request
response = conn.getresponse()
File "/usr/lib/python2.7/httplib.py", line 1045, in getresponse
response.begin()
File "/usr/lib/python2.7/httplib.py", line 409, in begin
version, status, reason = self._read_status()
File "/usr/lib/python2.7/httplib.py", line 365, in _read_status
line = self.fp.readline(_MAXLINE + 1)
File "/usr/lib/python2.7/socket.py", line 476, in readline
data = self._sock.recv(self._rbufsize)
File "/usr/lib/python2.7/socket.py", line 170, in _dummy
raise error(EBADF, 'Bad file descriptor')
error: [Errno 9] Bad file descriptor
[19/Jun/2015 02:29:35] "GET /api/detective/common/v1/summary/mine/ HTTP/1.1" 500 20827

It seems to be related to Neo4j but I don't understand why, indeed on localhost:7474, I can access to the webadmin of the database. I'm behind a proxy (but before it was not an issue).
Have you ever seen this issue?

regards