Activation License Key Error

I have entered a activation key and it says "Sorry something went wrong can someone please help me? 

Hello, Sterling

We will help you with the activation.
As we are not able to find any subscriptions under your account, we have sent an email with further details.
Please check your inbox/spam for the email.

Hello, Sterling

We will help you with the activation.
As we are not able to find any subscriptions under your account, we have sent an email with further details.
Please check your inbox/spam for the email.