A TimThumb error has occured

The following error(s) occured:

You may not fetch images from that site. To enable this site in timthumb, you can either add it to $ALLOWED_SITES and set ALLOW_EXTERNAL=true. Or you can set ALLOW_ALL_EXTERNAL_SITES=true, depending on your security needs.

Query String : src=http%3A%2F%2Frrj.journalism.ryerson.ca%2Fwp-content%2Fuploads%2F2007%2F05%2Fhumourist-in-chief-300x202.jpg&q=90&w=155&h=110&zc=1
TimThumb version : 2.8.11