I'm sure this has already been covered, but I've been searching for an hour.

I did something really dumb and loaded a theme I was positive I'd used before, but it doesn't work and now I can't get my original subBlack theme back. All I have is a white screen. I do have a backup of the site, but I've never done a restore and there must be an easier way.

Any help would be greatly appreciated and yep I'm a noob.

Fixed it myself. I'm sure there's a technical way to go in and edit your Default Theme in MY SQL Data base and MyphpAdmin, but here's what I did...

I just upload my original default theme again after I renamed as the theme that caused the issue. That got my website back, then I went into Administration>Preferences and changed the problem theme back to my good theme. Then I deleted the bad theme and everything is back to normal.

im actually kind of in the same situation however its my forums that messed up one of my admins was doing something and now i get this error so i need to know if theres any way to restore the default forum theme through the mySQL database i tryed one method however it did not work.