I have a PDF of the manual for the Carado Banff, which is similar. I own a 2018 Banff. There is a Facebook group for Axion owners, and someone there likely has the Axion manual. You could have downloaded it from the website had EHGNA not gone bankrupt.
One group is called Carado Axion. Sorry, I initially confused the Axion with the Aktiv. If the Axion was made in Europe, you might find the manual on the Carado webpage. If it was made in Canada, you are probably out of luck aside from other owners.