I've been trying to use the online demonstration instance of Lemon8-XML but I'm having some problems. Every time I try to upload a file, my test file, or some other, no matter what file type it is, I get the same error. For a couple of seconds an error page flashes which says "Error saving document to DB" and "Please provide a valid document ID". I get this error no matter what file I try to upload. I checked the FAQ and elsewhere but have found no indication of what this error means or what I'm doing wrong.
Has anyone else encountered this? Am I doing something wrong? Have I missed something?