CCcam Help Please

I haven't needed to touch the image on my DM800HD in years, but it has become unstable so I have just gone to reinstall the same image using a browser.

After I have installed I expected to be able to select a CAM (pressing Green, Red), but for some reason it keeps saying connection to cam refused. I am at a loss as to how to get back up and running.

Can I manually send a cam across if so any help would be greatly appreciated. THANKS