tracker.get_slot('router') returns None

[madhavpr13]

Hi Nahid,

Thanks for building customer_bot. Awesome repo.

However, I am facing an issue in actions.py. When I run your dialogue_management_model code, the statement tracker.get_slot("router") returns None. A sample of my conversation is shown below.

me: hi
bot: Hello! How can I help?
me: I need a router
bot: Which product?
me: 829
bot: Your product None is ordered for you. It will be shipped to your address. Your confirmation number is 123456

Could you please tell me what's going on and how might we fix this error?