Update app.py

scripts/app.py

@@ -8,7 +8,7 @@ app.secret_key = 'super secret key'
 app.register_blueprint(blueprint_object)
 try:
     if __name__ == '__main__':
-        app.run(port=8300)
+        app.run(port=8021)
 except Exception as e:
     logging.exception("Exception occurred", exc_info=True)
     print(e)