I am trying to load the Crave app, when I search for it on the Canadian website it bumps me to the US site. When I go to the Crave channel page via google search the "add channel" is greyed out. I have a Canadian Roku account and I am using the Canadian site.
Try clearing your cookies or a different browser or different device. Roku's web team is pathetic at best. I'm often bumped to a different Roku site for a different country and I have to clear all Roku cookies to get it to behave. You may have better luck searching for it on your Roku device in "Streaming channels" or whatever they're calling the Channel Store these days.