Prezi sync

I have been using Prezi online and created a prezi and just recently installed the desktop app. I wanted to continue editing that same prezi but it doesn’t appear on the app. i really want to use this one before buying because i’m not sure yet until i see hhow eveything goes after i present it. How can i solve this? this is kind of urgent.

Yeah, i guess, a friend of mine installed this. i dont have any other prezi’s made, this is the only one i have made.