Help with docker installation

I’m try to run Seafile on OpenMediaVault using the docker facility.
It installs fine (seems like at least) but I’m unable to login.
I can see the installation under /opt but if I try to reset the admin credentials I get the following:

root@NAS:/opt/seafile-server-6.3.4# ./reset-admin.sh
    Traceback (most recent call last):
      File "/opt/seafile-server-6.3.4/seahub/manage.py", line 10, in <module>
        execute_from_command_line(sys.argv)
      File "/opt/seafile-server-6.3.4/seahub/thirdpart/django/core/management/__init__.py", line 364, in execute_from_command_line
        utility.execute()
      File "/opt/seafile-server-6.3.4/seahub/thirdpart/django/core/management/__init__.py", line 356, in execute
        self.fetch_command(subcommand).run_from_argv(self.argv)
      File "/opt/seafile-server-6.3.4/seahub/thirdpart/django/core/management/base.py", line 283, in run_from_argv
        self.execute(*args, **cmd_options)
      File "/opt/seafile-server-6.3.4/seahub/thirdpart/django/core/management/base.py", line 330, in execute
        output = self.handle(*args, **options)
      File "/opt/seafile-server-6.3.4/seahub/seahub/base/management/commands/createsuperuser.py", line 88, in handle
        User.objects.get(email=default_username)
      File "/opt/seafile-server-6.3.4/seahub/seahub/base/accounts.py", line 94, in get
        emailuser = ccnet_threaded_rpc.get_emailuser(email)
      File "/opt/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/pysearpc/client.py", line 110, in newfunc
        ret_str = self.call_remote_func_sync(fcall_str)
      File "/opt/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/ccnet/rpc.py", line 71, in call_remote_func_sync
        client = self.pool.get_client()
      File "/opt/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/ccnet/pool.py", line 29, in get_client
        client = self._create_client()
      File "/opt/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/ccnet/pool.py", line 21, in _create_client
        client.connect_daemon()
      File "/opt/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/ccnet/client.py", line 131, in connect_daemon
        return self.connect_daemon_with_pipe()
      File "/opt/seafile-server-6.3.4/seafile/lib64/python2.7/site-packages/ccnet/client.py", line 113, in connect_daemon_with_pipe
        raise NetworkError("Can't connect to daemon")
    ccnet.errors.NetworkError: Can't connect to daemon