Can't duplicate a project

Hi, I have not altered any code other than the CSS and every other project in my workspace works fine. But suddenly I received this error message:
Notice: Use of undefined constant SITE_PREVIEW_TITLE - assumed 'SITE_PREVIEW_TITLE' inC:\Apache24\htdocs\modules\site\preview.php on line 42

It only appears on the duplicate of one of my projects. When I try to edit the duplicate It shows me no content in the editor window (not even the usual new page buttons you would have from a new project) and It won't allow me to preview the project either.

I wonder If this Is a problem you have come across before and you could save me the time endeavoring to fix it (or failing that, reconstructing my project) or if it's a problem unique to me?

Kind regards,

Max

was this on a project you were already editing or is the error only on a copy you haven't edited yet?

There was a bug with an earlier revision of the Xerte 3 code which intermittently prevented the duplicate function from working fully. Some would duplicate others wouldn't. This has since been fixed but could be the cause if your installation pre-dated that fix.

One way to check is to export the working original and then import that back in to create the copy - that should work?

If you're saying that the actual project you've been working on won't now edit then the xml may have become corrupted - but that's guesswork. Someone with access to the server files may still be able to help.

Ron

Yes it was only the duplicated version which wouldn't edit, I'll use that work around though.

Many thanks,

Max