Thanks everybody. I didn't realize this would get so confusing. I was merely trying to help by posting an error that happened to me.
I'm not sure that I understand exactly 'which' version to download and install; DEV or Master, (since nobody told me specifically which one to use). I went ahead and deleted everything related to Carbonite in my Downloads folder and I also deleted all Carbonite folders from my C:\Program Files (x86)\World of Warcraft\Interface\AddOns folder. I'm going to download and install what appears to me as the most recent GitHub files for Carbonite-related modules and, that one is the current DEV version.
I think it's too bad that the GitHub does not use actual dates-times instead of rounding things by months. Both DEV and Master show the same "
2 months ago" for many of the files. That doesn't really tell me which version is the latest version in either of them.
The attached image here explains why I
guessed that it is probably the one to use. If I guessed incorrectly, I'll appreciate someone telling me I did it wrong.