diff --git a/mayan/apps/common/apps.py b/mayan/apps/common/apps.py
index 7fb9ee8ee1..634b4fcb77 100644
--- a/mayan/apps/common/apps.py
+++ b/mayan/apps/common/apps.py
@@ -14,7 +14,6 @@ from django.utils.encoding import force_text
 from django.utils.translation import ugettext_lazy as _
 
 from mayan.celery import app
-from navigation import SourceColumn
 from navigation.classes import Separator, Text
 from rest_api.classes import APIEndPoint
 
@@ -90,8 +89,6 @@ class CommonApp(MayanAppConfig):
     def ready(self):
         super(CommonApp, self).ready()
 
-        ErrorLogEntry = self.get_model(model_name='ErrorLogEntry')
-
         APIEndPoint(app=self, version_string='1')
 
         app.conf.CELERYBEAT_SCHEDULE.update(
diff --git a/mayan/apps/common/tests/base.py b/mayan/apps/common/tests/base.py
index a3f1702e10..b76417d14f 100644
--- a/mayan/apps/common/tests/base.py
+++ b/mayan/apps/common/tests/base.py
@@ -1,19 +1,11 @@
 from __future__ import absolute_import, unicode_literals
 
-from django.contrib.auth import get_user_model
-from django.contrib.auth.models import Group
 from django.test import TestCase
 
 from django_downloadview import assert_download_response
 
 from permissions.classes import Permission
-from permissions.models import Role
-from permissions.tests.literals import TEST_ROLE_LABEL
 from smart_settings.classes import Namespace
-from user_management.tests import (
-    TEST_ADMIN_PASSWORD, TEST_ADMIN_USERNAME, TEST_ADMIN_EMAIL,
-    TEST_GROUP_NAME, TEST_USER_EMAIL, TEST_USER_USERNAME, TEST_USER_PASSWORD
-)
 
 from .mixins import (
     ContentTypeCheckMixin, OpenFileCheckMixin, TempfileCheckMixin, UserMixin
diff --git a/mayan/apps/common/views.py b/mayan/apps/common/views.py
index 73397c6841..0109fd0e0d 100644
--- a/mayan/apps/common/views.py
+++ b/mayan/apps/common/views.py
@@ -31,7 +31,6 @@ from .generics import (  # NOQA
     SingleObjectEditView, SingleObjectListView, SimpleView
 )
 from .menus import menu_tools, menu_setup
-from .models import ErrorLogEntry
 from .permissions_runtime import permission_error_log_view
 from .utils import check_version
 
diff --git a/mayan/apps/document_states/apps.py b/mayan/apps/document_states/apps.py
index f9a07b5a5a..56353ad5b1 100644
--- a/mayan/apps/document_states/apps.py
+++ b/mayan/apps/document_states/apps.py
@@ -12,7 +12,7 @@ from common import (
     MayanAppConfig, menu_facet, menu_main, menu_object, menu_secondary,
     menu_setup, menu_sidebar, menu_tools
 )
-from common.classes import ErrorLogNamespace, ModelAttribute
+from common.classes import ModelAttribute
 from common.links import link_object_error_list
 from common.widgets import two_state_template
 from mayan.celery import app
diff --git a/mayan/apps/document_states/tests/test_models.py b/mayan/apps/document_states/tests/test_models.py
index 65bf0934b3..0e1d1ff1fc 100644
--- a/mayan/apps/document_states/tests/test_models.py
+++ b/mayan/apps/document_states/tests/test_models.py
@@ -3,7 +3,6 @@ from __future__ import unicode_literals
 from django.test import override_settings
 
 from common.tests import BaseTestCase
-from common.tests.mixins import UserMixin
 from documents.models import DocumentType
 from documents.tests import TEST_SMALL_DOCUMENT_PATH, TEST_DOCUMENT_TYPE_LABEL
 from document_indexing.models import Index, IndexInstanceNode