Hello @pritesh.raka,
Welcome to Kore Community!!!
In Botkit config.json file you have the code for redis connection.
"redis": { "options": { "host": "localhost", "port": 6379 }, "available": false },
If Redis is applicable, available will be true, if not make it false and you should not be seeing the error.
For Redis on windows, there are some recommendations here
You can also refer the following post for best way to use Botkit for webhook calls :
https://test-discourse.kore.ai/t/example-of-how-to-use-web-hook-node-for-response-which-takes-more-than-20-seconds/989/2
Hope this helps!!