Wish I could help you, I had to get help outside these forums to restore my site from the back end since I couldn’t even access login, and my last post where I apologized for posting in the first place was removed, despite that I explained I was having same problem you were.
FWIW, my friend who hosts my page had to restore an old version of the site, you might ask Bluehost to do the same for you?
Good luck!
I’m having the same problem (and also freaking out)- I was editing the style sheet, trying to alter the title bar of sidebar widgits, and all I did was add a command to center, or at least that is what I think I did. Now I can’t access the side or wordpress admin. I can’t even get a login page to show up, everything comes up completely blank. Can anyone help please??!