(Problem solved) Lost most of content from my presentation

Hello. I and my friend work with on one account. I was working on presentation and often save it but when my friend logged in from her device, most of my work was deleted. Is it possible to restore my works to the certain date and time? I want it to the this time and date: February 22, 2019 and time is 14.00 at Greenwich Mean Time. Please help me, i have thesis presentation on Monday. Here is the link: https://prezi.com/fu8ruzeio9bq/copy-of-mobile-marketing/