@father-liang Update to 2.7.x or 2.8.x for rasa and rasa-sdk and for Rasa-X 0.39.3.
@father-liang Even, do check the terminal while running rasa-x and share the error.
@father-liang can I request to close this thread with, solution while tick the solution, or share your solution, so others get to know solution. Thanks.