Recovering Lost Content Posted on WordPress Site

For some reason, my student copy of Articulate 360 didn't retain the work I had completed when I renewed.   I lost my schoolwork.  

I did upload the work to a website:  https://caregivercoaching.info/wp-content/uploads/articulate_uploads/Dance-Happy-for-Caregivers5/story.html

It was created in Storyline with some Engage.

If possible, is there a way to retrieve this work from the website so that I can polish it up and get it ready for the real world?

It would be great not to have to start from scratch.  

Thank you in advance for your advice.