Missing Controller

Application_Controller could not be found

Additional Information

The system searched in the following paths:
- /home/grimsbyp/public_html/application/controllers
- /home/grimsbyp/public_html/core/libs/controllers

Request Information
controller: application
action: webroot
params: 0 => userfiles 1 => lic_grimsby_distribution_ED-2002-0554_20031014.pdf
url: url => userfiles/lic_grimsby_distribution_ED-2002-0554_20031014.pdf