I'm very new to this so please be patient.
I successfully installed wordpress last week, adding the atahualpa theme and adapted it to my needs.
Then I was messing about in atahualpa's functions.php file and got an error - probably just because of a misplaced bracket. But then I got confused and replaced the functions.php file in wp-includes instead of the one the theme. So I've managed to block even access to the the admin section as well as the site itself being down.
Any ideas about what I could do next?
the site is http://www.quietnightin.nl