I just created my first WordPress site, and wrote my first post. I was in the Visual editor. When I clicked the Preview button, everything I'd written disappeared, leaving the word "undefined". So I tried again, this time using the Save Draft button. Same result. The title stays, but the post disappears.
Any idea why this is happening and how to make it stop? Not being able to write posts seems like a fairly big limitation to using WordPress as my blogging software.
The theme I'm using is Cazuela. The site address is sarahwynde.com, although there's nothing interesting to see there, since posting doesn't work. Let me know if there's anything else that would be useful to know!
Thanks for any help.