diff --git a/apps/common/utils.py b/apps/common/utils.py
index 5b870c088..7daa449a4 100644
--- a/apps/common/utils.py
+++ b/apps/common/utils.py
@@ -392,7 +392,10 @@ def get_command_storage_or_create_default_storage():
     from common.models import common_settings, Setting
     name = 'TERMINAL_COMMAND_STORAGE'
     default = {'default': {'TYPE': 'server'}}
-    command_storage = common_settings.TERMINAL_COMMAND_STORAGE
+    try:
+        command_storage = common_settings.TERMINAL_COMMAND_STORAGE
+    except Exception:
+        return default
     if command_storage is None:
         obj = Setting()
         obj.name = name
@@ -413,7 +416,10 @@ def get_replay_storage_or_create_default_storage():
     from common.models import common_settings, Setting
     name = 'TERMINAL_REPLAY_STORAGE'
     default = {'default': {'TYPE': 'server'}}
-    replay_storage = common_settings.TERMINAL_REPLAY_STORAGE
+    try:
+        replay_storage = common_settings.TERMINAL_REPLAY_STORAGE
+    except Exception:
+        return default
     if replay_storage is None:
         obj = Setting()
         obj.name = name
diff --git a/apps/terminal/backends/__init__.py b/apps/terminal/backends/__init__.py
index 1c454a32d..0f0ec0cc5 100644
--- a/apps/terminal/backends/__init__.py
+++ b/apps/terminal/backends/__init__.py
@@ -3,7 +3,6 @@ from django.conf import settings
 from .command.serializers import SessionCommandSerializer
 
 from common import utils
-from common.models import common_settings, Setting
 
 TYPE_ENGINE_MAPPING = {
     'elasticsearch': 'terminal.backends.command.es',