Anybody ever seen this?

File does not exist: ErrorPage.httCannot load file: ErrorPage.htt.

I get this error in Imanager when pulling up Iprint/NDPS printer objects.
For example when you go via web to clear print jobs as soon as you pull up
the NDPS printer it gives you this error. I've got two printer objects like
this. All the other printers work fine and pull up their info. This pretty
much prevents you from doing anything with the NDPS printer via web.