W2A2 facing 404 error :your requesting a page that doesn't exist

please help me out I have only 2 day to submit

Hi @Amzad_Hossain_Rafi ,

First of all, you have posted your query in the MLS Course1 discussion forum, which is not the discussion forum for DLS. Please post your query in the destinated forum for speedy response.
Regarding to the 404 page. I have just opened my notebook successfully. So, unless you have renamed your notebook, there shouldn’t be any problem.
You can get a fresh copy of the notebook by clicking the Help button on the top right corner of the 404 page and follow the instruction.

The deadline is arbitrary, it will reset without any penalty. It is there to help you monitor your progress.

@Kic thank you and sorry for my ignorance