Presentations Disappeared

I have a Edu Enjoy account and when I logged in today, my Prezis were gone. I had just accessed them three weeks ago, but there were none in my account. Can someone help me find them? Here is a link to the presentation that I badly need:

http://prezi.com/is8xkworrog_/present...

It's title is something like new teacher in-service.

Thanks for your help.