hi, have you already requested for the license key? if yes,there are a few things you can check if you still getting this error: 1.just make sure you are requesting the license key from the same browser or session used in your WordPress admin and if you requested more than 24hrs ago,try again.
2.manually copying and pasting the license key from the email instead of using automatic activation might also help
3. url mismatch so make sure you verify that your WordPress Site URL and Home URL match correctly and are accessible publicly.
i am not sure if this instruction will help you situation but let me know where you are at or the condition of the problem. might help further if you give me more info,cheers
