Can you explain in details How to implement fallback policy in rasa version3 without defining the intents?

i have tried as per official doc but my bot not perfectly trained and i got some type of error also i dint get any response from bot after user enter text ?

Guide me through fallback policy and their implementation ?

There’s a simple example bot that demonstrates fallback handling here. This would be a good starter bot for you to run locally so you can see how it works.