@Azza - logical, but incorrect.
Reinstall the add-on via the device-specific pack in the DroidBOX Wizard if it has been updated or deleted already.
Run the Mash Up fix also found in the Wizard.
It disables the autoupdate feature. The add-on still works, at least until any critical infrastructure (servers, databases etc) that the add-on's author controls is disabled/removed as well.
@Tommaso - Assuming you purchased a genuine DroidBOX device from us, head to XBMC and click on the Video menu, then Add-ons. If you can't see a Video menu, scroll right until you see a Media Portal menu and click on it. In either case, you'll then see the DroidBOX Wizard.
@Pauladev - head to the System menu in XBMC, Add-ons, Install from ZIP file . Towards the top you should have some red entries. As you highlight each one, you'll see the address (URL) for each one in the top left corner. Whichever has
http://fusion.xbmchub.com listed is the fusion repo . I've seen it with different labels, mine currently shows as .fusion