I figured out how to restore the original. My heart is no longer attacking. Thank you so much!
There is less possibility of issues with FileZilla than simply going through the hosting service then? What precisely should I do, either way — simply delete the offending plugin folder?
Thanks for quick response. Let’s pretend for a minute I’m a panicking idiot. I don’t know what an FTP client is. I’ve gone to my hosting service where it has all the files; could I do something there?