Please Help Technical details: id: 1200

Please Help Technical details: id: 1200 the reason is: [SecurityErrorEvent type=“securityError” bubbles=false cancelable=false eventPhase=2 text=“Error #2048”]

I was making a Prezi on the website, for a class I have this Tuesday. Suddenly I got a message saying the Prezi couldn ́t be saved and from then I cannot reload it. I always get this error message. I have the late version of flash, and it is not a connection or firewall problem, I have been using the Prezi perfectly fine until this happened.
The link to my Prezi is;


Same with me… how to solve this problem?

This link does not work. I have same problem and what is the solution?