fix error

app.py

@@ -8,7 +8,7 @@ import json
 import requests
 
 def get_rest_url(model_name, host='127.0.0.1', port='8501', verb='predict'):
-    url = 'https://{0}:{1}/v1/models/{2}:predict'.format(host, port, model_name)
+    url = 'http://{0}:{1}/v1/models/{2}:predict'.format(host, port, model_name)
      
     return url
 
@@ -79,5 +79,6 @@ iface = gr.Interface(
         Check out our project @ https://github.com/Soteria-ai/Soteria for more explantation! Demo below takes ~15 seconds to get the results.
     """,
     theme="grass",
+    enable_queue=True
 )
 iface.launch(share=False, show_error=True, inline=True, debug=True)