Seafile-server is not working after upgrading from 6.3.4 to 7.0.5

I upgraded seafile-server from version 6.3.4 to 7.0.5 this morning. The upgraded ran fine. However when I try launch

./seahub.sh start

I get the following result:

Starting seahub at port 8000 ...

Error happened during creating seafile admin.

Seahub is started

Done.

When I try to reach my server I get a Page unavailable error.

And the seahub gives me this error:

2019-10-16 12:28:46,485 [ERROR] django.request:135 handle_uncaught_exception Internal Server Error: /
Traceback (most recent call last):
  File "/home/guillerme/family/seafile-server-7.0.5/seahub/thirdpart/django/core/handlers/exception.py", line 41, in inner
    response = get_response(request)
  File "/home/guillerme/family/seafile-server-7.0.5/seahub/thirdpart/django/core/handlers/base.py", line 244, in _legacy_get_response
    response = middleware_method(request)
  File "/home/guillerme/family/seafile-server-7.0.5/seahub/seahub/auth/middleware.py", line 33, in process_request
    if request.user.is_authenticated() and not request.user.is_active:
  File "/home/guillerme/family/seafile-server-7.0.5/seahub/seahub/auth/middleware.py", line 23, in __get__
    request._cached_user = get_user(request)
  File "/home/guillerme/family/seafile-server-7.0.5/seahub/seahub/auth/__init__.py", line 120, in get_user
    user = backend.get_user(username) or AnonymousUser()
  File "/home/guillerme/family/seafile-server-7.0.5/seahub/seahub/base/accounts.py", line 573, in get_user
    user = self.get_user_with_import(username)
  File "/home/guillerme/family/seafile-server-7.0.5/seahub/seahub/base/accounts.py", line 544, in get_user_with_import
    emailuser = seaserv.get_emailuser_with_import(username)
  File "/home/guillerme/family/seafile-server-7.0.5/seafile/lib64/python2.7/site-packages/seaserv/service.py", line 132, in get_emailuser_with_import
    return ccnet_threaded_rpc.get_emailuser_with_import(email)
  File "/home/guillerme/family/seafile-server-7.0.5/seafile/lib64/python2.7/site-packages/pysearpc/client.py", line 125, in newfunc
    ret_str = self.call_remote_func_sync(fcall_str)
  File "/home/guillerme/family/seafile-server-7.0.5/seafile/lib64/python2.7/site-packages/ccnet/rpc.py", line 71, in call_remote_func_sync
    client = self.pool.get_client()
  File "/home/guillerme/family/seafile-server-7.0.5/seafile/lib64/python2.7/site-packages/ccnet/pool.py", line 29, in get_client
    client = self._create_client()
  File "/home/guillerme/family/seafile-server-7.0.5/seafile/lib64/python2.7/site-packages/ccnet/pool.py", line 21, in _create_client
    client.connect_daemon()
  File "/home/guillerme/family/seafile-server-7.0.5/seafile/lib64/python2.7/site-packages/ccnet/client.py", line 131, in connect_daemon
    return self.connect_daemon_with_pipe()
  File "/home/guillerme/family/seafile-server-7.0.5/seafile/lib64/python2.7/site-packages/ccnet/client.py", line 113, in connect_daemon_with_pipe
    raise NetworkError("Can't connect to daemon")
NetworkError: Can't connect to daemon

I don’t know if it presents some interest but fez days ago I upgraded my Debian to Buster, but the service (in V 6.3.4) was still functional.

I get the same log but I can start seahub without this error. I am not sure whether log and error are related, I just cannot access libraries with the app and the web interface shows “Error” when accessing a library but still shows content.