Personally I run Open Black Hole, on my Duo2, because it has the latest version, Kodi 17.6, installed, but you shouldn't be experiencing any problems, with Black Hole.
Please do a fresh installation, of Black Hole, and don't use any backups.
The only thing, you need to back up, is your channel list, and bouquets, using dreamboxedit, or dreamset.
You then install Kodi, in Open Black Hole it's located in Black Hole Speed Up.
Once enabled you just start Kodi from the Plugins menu.
Please post back with the results.
Please do a fresh installation, of Black Hole, and don't use any backups.
The only thing, you need to back up, is your channel list, and bouquets, using dreamboxedit, or dreamset.
You then install Kodi, in Open Black Hole it's located in Black Hole Speed Up.
Once enabled you just start Kodi from the Plugins menu.
Please post back with the results.