thank you. that was exactly it. Problem Solved.
if anyone else finds this in the future looking for an answer to the same problem … the path error is in the hosting directories, where the .zip file automatically unpacks a directory structure that the child theme cannot find. so all you need to do is move all the contents of the enfold directory one level up (and leave the _MACOSX folder in the same place) and, for me, it all worked itself out from there.