Rasa Sara : problems with action server

I am trying to run Sara (GitHub - RasaHQ/rasa-demo: Sara - the Rasa Demo Bot: An example of a contextual AI assistant built with the open source Rasa Stack) and I have problems chatting and utilizing the action server.

No registered action found for name ‘action_greet_user’.

I am currently using python 3.7.9 in pyenv.

EDIT: I fixed the issue by installing spacy dependencies and launching the server in the right directory

From which directory do I do them. What statement do I use? Thank you very much in advance