diff --git a/apps/common/utils/connection.py b/apps/common/utils/connection.py
index a19b04f85..22625c8ad 100644
--- a/apps/common/utils/connection.py
+++ b/apps/common/utils/connection.py
@@ -55,9 +55,9 @@ class Subscription:
                         _next(item)
                 except Exception as e:
                     error(msg, item)
-                    logger.error('Subscribe handler handle msg error: ', e)
+                    logger.error('Subscribe handler handle msg error: {}'.format(e))
         except Exception as e:
-            logger.error('Consume msg error: ', e)
+            logger.error('Consume msg error: {}'.format(e))
 
         try:
             complete()
@@ -100,4 +100,4 @@ class RedisPubSub:
         self.redis.publish(self.ch, data_json)
         return True
 
-    
+
diff --git a/apps/rbac/permissions.py b/apps/rbac/permissions.py
index fae808da1..dc1260d67 100644
--- a/apps/rbac/permissions.py
+++ b/apps/rbac/permissions.py
@@ -17,9 +17,9 @@ class RBACPermission(permissions.DjangoModelPermissions):
         ('partial_bulk_update', '%(app_label)s.change_%(model_name)s'),
         ('bulk_destroy', '%(app_label)s.delete_%(model_name)s'),
         ('render_to_json', '%(app_label)s.add_%(model_name)s'),
-        ('metadata', ''),
+        ('metadata', '*'),
         ('GET', '%(app_label)s.view_%(model_name)s'),
-        ('OPTIONS', ''),
+        ('OPTIONS', '*'),
         ('HEAD', '%(app_label)s.view_%(model_name)s'),
         ('POST', '%(app_label)s.add_%(model_name)s'),
         ('PUT', '%(app_label)s.change_%(model_name)s'),