@rahuluppari , I had issues with cofig files and path defaults in fast.ai, when I started using it. You need to inspect the path variables, and make sure you look at the each step. Sometimes I break apart a function and look what is happening step by step. I would also delete the wiki folder then try again.
It is complete junk, I didn’t know what I was doing, when I did it, but this is the notebook that I used to do it for french on GCP. Keep in mind that I didn’t run the code top to bottom.