Can someone help me diagnose my DNN - v2.0

Here is my code

I am not getting any errors, but the cost functions isn’t lowering down.

Take a look you might see something I’m not seeing.

update: my model works fine with HE initialization. idk why

I was not able to open that link. Please note that we aren’t supposed to share solutions for the assignments in these courses in a public place. But if you’ve written your own code, then it’s ok to share it in this way.