diff --git a/core/serializers.py b/core/serializers.py
index ce869885..7f0d16ac 100644
--- a/core/serializers.py
+++ b/core/serializers.py
@@ -74,7 +74,10 @@ class Meta:
     def get_subscriptions(self, organization):
         # check if user is OrgAdmin
         if self.context.get('request') and hasattr(self.context.get('request'), 'user'):
-            user_groups = self.context.get('request').user.core_groups.values_list('name', flat=True)
+            try:
+                user_groups = self.context.get('request').user.core_groups.values_list('name', flat=True)
+            except AttributeError:
+                user_groups = []
             if ROLE_ORGANIZATION_ADMIN in user_groups:
                 return SubscriptionSerializer(
                     organization.organization_subscription.all(),