Thanks all, I received this from their help department. Panic over!
Hello Willy
The ScriptBuddy server is currently experiencing technical difficulties and appears to have encountered an error while you were last editing your screenplay. This error prevented the screenplay from properly saving -- it saved only a portion of the screenplay.
We pulled from a backup of your screenplay that was made yesterday, but it looks like the screenplay had not previously been modified since March 20. The backed-up screenplay is in your account, labeled accordingly.
Please take a careful look at the backup and let us know if this gets you back to where you were. It's the most recent backup we have of your screenplay.
We are performing maintenance on the server today and I recommend you avoid doing any "edits" on your screenplay today. You can safely view the screenplay, but avoid edits where you type text and hit an "OK" button -- these "OK" buttons perform the save process.
We truly apologize for the inconvenience and are working to resolve the problem.