FAQ: If I have these addons installed, what should I do?
If you already have Covenant, Bennu, or any other addon installed which is no longer alive, LEAVE IT ALONE. There is no risk in keeping the addon installed at this time and they will continue to function. Kodi addons are simply search engines to the public internet and host no content. Without developers, addons degrade over time and you will see less and less links returned by them.
If you uninstall an addon, you will not be able to install it again easily. If you are setting up a new Kodi box, you will not be able to install any repo that is currently down.