Sorry to hear about that. Unfortunately no. If it never successfully posted to the site, I don't have anything to retrieve.
"Security Token" errors typically show up when their is an issue with uploading images. Usually, has to do with the file type, size, or number.
I'd suggest typing everything up in a Word document just in case it happens again so that you don't have to redo it a 3rd time. And if it does happen again, give me the details of the images you were trying to upload