Quick Little Keras Question

I tried posting this on stackoverflow with no response.

Im trying to use model.save() and keras.models.load\_model()

on [this](https://keras.io/examples/nlp/text_generation_fnet/) chunk of code. But, unlike some of the other keras examples I've played with, this one seems to crash.

I'm super new to this, any Ideas why? I can post the error message if it helps.

keras neuralnetworks