cannot register my purchase code

Hi. I’ve buy code on codecanyon. But today, i cannot register my purchase code.
This is error : Server is busy or either not responding, please try after some time
i’ve try many times.
Can you help me

Hi

May be Author Support server is down. Please clear browser cache and try again after few hours.

Also you can contact Item Author to get support How to Contact your purchased Item Author and let them know.

Thanks