WordPress Error – Need Help

I recently installed a plugin on my wordpress 2.7 blog and received this error

Warning: include_once(/home/username/public_html/wp-content/plugins/resources/) [function.include-once]: failed to open stream: Success in /home/username/public_html/wp-settings.php on line 465

Warning: include_once() [function.include]: Failed opening ‘/home/username/public_html/wp-content/plugins/resources/’ for inclusion (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/username/public_html/wp-settings.php on line 465

I uninstalled it, but there error is still there, can someone assist.

Thanks