Check if you turned on Unfollow on your Accounts page.
Inflact is able to automatically unfollow:
New Inflact follows
New not mutual Inflact follows
All accounts
All not mutual accounts
Note that once you enable Unfollow, it starts to unfollow only those accounts that system were following 3 days before and more. On the fourth day it unfollows those who it followed the first day, on the fifth those who followed the second day, etc.
You can choose which accounts you want to unfollow in your settings.. If you want to know more about Unfollow feature go to Targeting section -> Advanced Settings.
Make sure you set up it correctly and Inflact has the accounts to unfollow