Thanks for reaching out to us about this, and I'm sorry for any trouble caused by this issue. I'm not certain what could have caused your files to disappear, but I'd like to ask a few questions to get a better idea of what occurred. Could you let me know what version of VoodooPad (e.g. 5.1.8) you are updated to, and if you sync your files with Dropbox or any other method? If you do sync your files, could you provide some details about how you do?