Rasa SDK error - No registered action found for name "name_form"

Hello guys,

Rasa Version      :         2.8.21
Minimum Compatible Version: 2.8.9
Rasa SDK Version  :         2.8.4
Rasa X Version    :         None
Python Version    :         3.7.12
Operating System  :         Linux-5.4.0-1067-azure-x86_64-with-debian-11.2
Python Path       :         /usr/local/bin/python

I have a action to do a request to an API and build a utterance depending on the result of this requests.

In one of my ifs I want a form to be triggered, like this:

else: 
    logger.info(f'Retrieved Mood Level: {mood_level_string}')
    logger.info(f'Retrieved Mood Level Summary: {mood_level_summary}')


    mood_utterance = "Great, let's start by looking at a summary of what you've shared with me."

    dispatcher.utter_message(text=mood_utterance)
    dispatcher.utter_message(text=mood_level_summary)
    return [SlotSet("weekly_timestamp", time_stamp), FollowupAction(name="weekly_checkin_form")]

I have this form in my domain, and everything seems right but I have this error at my log:

2022-05-20 19:34:02 DEBUG    rasa_sdk.executor  - Finished running 'action_weekly_summary'
2022-05-20 19:34:02 DEBUG    rasa_sdk.executor  - Received request to run 'weekly_checkin_form'
2022-05-20 19:34:02 ERROR    rasa_sdk.endpoint  - No registered action found for name 'weekly_checkin_form'.

Domain:

forms:
  weekly_checkin_form:
    required_slots:
      weekly_rating_obstacle:
      - type: from_text
      weekly_future_help:
      - type: from_text

Rule:

  - rule: Activate weekly checkin form
    steps:
    - action: weekly_checkin_form 
    - active_loop: weekly_checkin_form
  
  - rule: Desactivate weekly checkin form
    condition:
    - active_loop: weekly_checkin_form
    steps:
    - action: weekly_checkin_form
    - active_loop: null
    - slot_was_set:
      - requested_slot: null
    - action: utter_weekly_end_form

Someone knows how to deal with this?