@TheShadow29 I kept your notebook in my browser tab, to reproduce it with fastai v1 after finishing the course, but seems a lot of changes happened to the framework, and your excellent notebook need some refactoring for the latest version of the fastai.
Here is how I could import custom Pytorch models into fastai v1.39 if you are interested:
https://forums.fast.ai/t/lesson-5-advanced-discussion/30865/40?u=hwasiti