I got this error when i go to "manage category" in admin side.
Fatal error: require_once(): Failed opening required '/home/shopnow/public_html/errors/report.php' (include_path='/home/shopnow/public_html/app/code/local:/home/shopnow/public_html/app/code/community:/home/shopnow/public_html/app/code/core:/home/shopnow/public_html/lib:.:/usr/local/lib/php') in /home/shopnow/public_html/app/Mage.php on line 925
when i go to error folder, i couldn't found
what should I do to see "manage category" again?