Older model not running

when i ran the command : python -m rasa_core.run -d models/dialogue -u models/nlu

I got an error: rasa_nlu.model.UnsupportedModelError: The model version is to old to be loaded by this Rasa NLU instance. Either retrain the model, or run withan older version. Model version: 0.11.4 Instance version: 0.14.3

I even retrained the model but still got the same error

I was able to run it a month back… Can any one help me with this?

Your Rasa NLU version has been updated to 0.14.3

You could try to uninstall with pip uninstall rasa_nlu, and reinstall using pip install rasa_nlu==0.11.4