Advanced traning issues

Hi, I have been trying executing the advanced training assignment 2. Some of them were running properly; however, some them shows the “404 Not Found” page and this problem cause the error when executing the processes.

Is there any solution to solve this?
Thank you

See this -

Reset you test data and make sure that you try to download report for a previous year like if you have 2018 and 2017 available in the dropdown then go for 2017

Here is the error page