potential phantom issue, cannot book any flights to a specific airport

Have tried for two days booking a RT flight to YYJ (Victoria, BC) and keep getting message "No results available..." even though they all showed up a few days ago and even though I have tried numerous departure airports and dates ranging from next week to June but keep getting the error message for that one airport. However, when I used Google Flights, it showed those flights available and took me to the AK website with those flights to YYJ? I am hesitant to book using this method. Any thoughts?