CanadaPost shipping options are temporarily suspended due to the risk of a postal strike.
https://www.canadapost-postescanada.ca/cpc/en/our-company/news-and-media/corporate-news/negotiations-list.page
To avoid packages becoming potentially stuck inside the postal system due to an impending strike, we have temporarily discontinued CanadaPost shipping as an option.
Once there is more clarity around the strike action, we may open up CanadaPost shipping. In the meantime, we are offering discounted expedited courier options (Purolator, UPS, DHL, etc).