I recently tried following the instructions for adding widgets to a header area in wordpress and had a typo when updating it. This results in:
Fatal error: Call to undefined function reigster_sidebar() in /data/17/1/85/77/1737566/user/1876721/htdocs/proteus/wp-content/themes/twentyeleven/functions.php on line 439
Obviously I had a typo in the "reigster" part. I deleted the offending change that I made to functions.php and tried to update again, but still get the same error message. I can't navigate anywhere else within the admin area.
Do I need to reinstall wordpress? Can I just upload a copy of the functions.php for the theme that I'm using somewhere?