Metadata Point Zero on Exercise 5, ERROR message (Timeout, Interrupting), Validate button--Course 2

I’m working on the last assignment of course 2 and struggling with passing it.
Just wondering if the graded Exercise 5 is intended to be point 0, as I see the metadata, it says zero.

Every exercise up to the Train Model is passed.

For the training model, the cost is looking good. The cost goes down all the way for the 100 epochs.

While I’m working on improving the accuracy, I submitted my assignment also. But it hasn’t passed yet. It returned with a message, and the last three lines are these:

[ValidateApp | ERROR] Timeout waiting for execute reply (30s).
[ValidateApp | ERROR] Interrupting kernel
Tests failed on 2 cell(s)! These tests could be hidden. Please check your submission.

I refreshed the Jupyter notebook, tried pressing Validate button also, and the button doesn’t come back after pressing it. I waited for a long time until I had to extend the session.

I’m not sure if I need to do this, but I’m reading about socks.timeout(None).

Could you please refresh the workspace and try again? If things don’t go as expected, please click my name and message the following:

  1. Notebook
  2. Grader feedback (text / screenshot) and your comments