That is very strange that you are receiving that error on your site for your License Key. No need to worry since your license key is activated properly and everything is working just fine, its not displaying the correct message on your site for some reason. The team is going to work on figuring our why that is.
As for your stats not working do you mean the views or comment or share count?
Do you have a testing site I can get access to or would you be willing to give me admin login credentials to your live site? I would need to see if there is a plugin conflict on your site to better determine what the issue is.