This appears to be an issue after an iOS update/app update and currently the only solution appears to be the following:
Remove both apps from both devices, Restart both devices (do not skip this part) and then re-install.
That's the only solution at this point. This appears to be an Apple-related bluetooth bug and a bug report has been filed.
If there is a better solution someone has discovered please file a bug report from within the ScoreCam or Scoreboard Remote app (under settings).Tags: bluetooth, error, scoreboard remote