When working in Microsoft ® Office Word I’m getting an pop-up window saying something about that my file is used by Normal.dot (or Normal.dotm) when I’m trying to save my file?

Normal.dot or Normal.dotm is that blank page you get when you open a new document in Microsoft® Office Word. If this template file gets corrupted, in some cases it can affect  ProjectCoordinator when you want to save the files back to the portal. If you get the question about if you want to resave Normal.dot or Normal.dotm, click OK. Otherwise the file won’t be saved back to the portal before you do that.

After that it should work as normal again. This is an issue caused by Microsoft® Office, not ProjectCoordinator™.