Rasa Interactive issue

Hi everyone, I’m trying to run “interactive rasa” but I got an error like: rasa.utils.endpoints.ClientResponseError: 500, Internal Server Error, body=‘b’{“version”:“2.0.0”,“status”:“failure”,“message”:“An unexpected error occurred. Error: blocks[:,0] has incompatible row dimensions. Got blocks[1,0].shape[1] == 8, expected 13.”,“reason”:“ConversationError”,“details”:{},“help”:null,“code”:500}’’ I am under python3.6 and I installed rasa by doing “pip3 install rasa [full]”

Someone can help me ? thank you in advance.