Your model training has failed

Hi I’m new to the Rasa. I installed Rasa-X version 0.42.6. I used simple greeting story for initial. I went to train model and I getting the following error “Training Failed” “Your model training has failed” but no any explanation as to why or where the errors. I used Docker-Compose for deployment. Following are the OS details

Ubuntu - 20.04 Python - 3.8.2