This error is caused due to the use of an incorrect Activation Key within the installer including:
1) If you are using an Activation Key then it may be invalid.
2) If you are using an Activation Key for a license that is LNU only.
This error can also occur if you are trying to log into an LNU prompt with an account that does not have an LNU license.
Please use the correct Activation Key in order to activate MATLAB.