The DotRes CA POS is no longer valid -- you need to select an alternative POS from the list (US/IT/UK).
I will change the POS. You may have mentioned it in the Air Canada forum (which I have not yet looked into) that the DotRes for Canada as the POS is no longer valid; do you plan to add that as an alert to your KVS home page? As of what date has dot res become invalid for Canada as POS?