The subscription was set to renew automatically but in 2018, Carbonite wanted to increase the yearly subscription by more than 50% with low upgrades without warning, Also you have to waste your time calling the Carbonite representative if you need to restore older files from a backup instead of doing it your self.
Now I am using Gs Richcopy 360 which has a very good license policy (for once), I can do any type of backup by myself, no need for the support because of the easiness of the tool.