fix empty queue

utils/queue_utils.py

@@ -15,6 +15,8 @@ def fetch_insert_resource_queue(intern_node_address: str):
     Fetches the resources from the queue and inserts them into the database
     """
     resources = get_resource_queue(intern_node_address, True)
+    if (resources is None):
+        return
     for resource in resources:
         insert_resource(resource)
 
@@ -23,6 +25,8 @@ def fetch_insert_command_queue(intern_node_address: str):
     Fetches the commands from the queue and inserts them into the database
     """
     commands = get_command_queue(intern_node_address, True)
+    if (commands is None):
+        return
     for command in commands:
         resource_id = command['resource_id']
         cm = command['command']