Need help not able to find the file for above subject if someone can share will be helpful

You filed this under the general category of “AI Project”, but it looks like you are asking about some specific course. It would be more likely to get a useful response if you post it under the relevant course category. In most of the courses I am familiar with, there is an easy way to get a fresh copy of any of the assignments, but there are no “official” solution files if that’s what you are asking.

yes the assignment for lab is missing and showing not found error, The steps I follow to get in my file is by clicking the lab Launch button then at next level I am getting not found error.

The instructions are on this thread, but the TL;DR is: Help -> Get Latest Version. From that 404 Error screen. Click the Help in the upper right corner. Very simple.