Prezi Error 1530

I am having a problem with prezi being unable to save my data. I get the common error 1530 (that it seems many others have also encountered) and after researching possible solutions I have been unable to solve this. I recent downloaded the newest version of Adobe Flash and am using a newer mac laptop (OS X version 10.8.5). I also attempted to allowed access to prezi through the firewall softwares and tried numerous different browsers (chrome, firefox & safari). I used to be a frequent prezi user but haven’t used it within the past six months and would like to be able to use it again. Please let me know if yu have any other possible solutions.