Missing Controller

Userfiles_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: userfiles
action: NWTC_GPI_MAADsAPPL_20141106.pdf
url: url => userfiles/NWTC_GPI_MAADsAPPL_20141106.pdf