@kenzydario Oh, I can see that there is an issue on this on GitHub as well: MemoryError with tensorflow_embedding on ~73k dataset with 38 intents · Issue #1621 · RasaHQ/rasa_nlu · GitHub. We are looking into what is the possible cause of this issue and will get back to it on GitHub.
A quick and very naive solution in a meantime would be to cut out the size of training data.