licence registration

I have my prime licence and it was registered to my subdomain and then i moved the website to the main domain and i reset the licence and now it's unregistered so how can i register my licence to the main domain please help

Follow these steps:

• remove your current license from Administration > Settings > Advanced Settings > Variables
• log out of the administration panel
• login to the administration panel
• enter new license when requested

If this doesn't work, try clearing your cache. You should also make sure that allow_url_fopen is enabled for PHP.

how to allow_url_fopen is enabled for PHP?

because i did what you wrote but still boonex logo is showing .

i would like to know how to register my new domain to the licence

You can check to see if it's enabled under Administration > Tools > Host Tools > Params. Have you also tried clearing your site's cache?