wildbill7145;405970 wroteAnyhoo, might be time for a newer box I guess. Had to redownload an older version of kodi as v17.3 won't work with this things older operating system. Got 16.1, and the Covenent addon from the colossus repository. All good now.
It it has done this on my box a few times.
Goto to add-ons under video.
scroll down..... if you don't see the exodus screen keep scrolling to bottom and click on "get more'
scroll down till you exodus and click on it.
should allow you to install open or update exodus......
hope it helps.
you box should be good for years.