Facebook Quick Replies Not working

I am trying to add quick replies to my domain and it says that quick_replies is not defined. This is the error: israa@israa-VirtualBox:~/Desktop/Rasa/Restaurant/English Code Using Zomato$ rasa train YamlValidationException: Failed to validate ‘/home/israa/Desktop/Rasa/Restaurant/English Code Using Zomato/domain.yml’. Please make sure the file is correct and all mandatory parameters are specified. Here are the errors found during validation: in /home/israa/Desktop/Rasa/Restaurant/English Code Using Zomato/domain.yml:117: Key ‘fb_quick_replies’ was not defined. Path: ‘/responses/utter_ask_cuisine_en/0’

and this is the domain:

utter_ask_cuisine_en:
  - channel: facebook
    fb_quick_replies:
      - payload: Chinese
        title: Chinese
        content_type: text
      - payload: Italian
        title: Italian
        content_type: text
      - payload: South Indian
        title: South Indian
        content_type: text
      - payload: North Indian
        title: North Indian
        content_type: text
    text: what kind of cuisine would you like?

from my understanding that quick replies is already predefined in rasa, I’ve check the facebook.py in the rasa file and it is there. So why isn’t it working?

P.S. I’ve tried to make it work in the actions file by using carousels and I didn’t know what the code I should write is, I’ve tried several and they’re all not working.

It stopped giving me that error when I fixed the space, new code: utter_ask_cuisine_en:

>   - channel: facebook
>     custom:
>       quick_replies:
>         - content_type: text
>           payload: Chinese
>           title: Chinese
>         - payload: Italian
>           title: Italian
>           content_type: text
>         - payload: South Indian
>           title: South Indian
>           content_type: text
>         - payload: North Indian
>           title: North Indian
>           content_type: text
>     text: what kind of cuisine would you like?

Now however when I run the code and open facebook I don’t get anything. What is the error? photo_2021-01-12_22-36-14