Facing an error "There Has Been A Critical Error On Your Website "

I was facing an error "There Has Been A Critical Error On Your Website " on Wordpress upon installing Stoni Theme. Then I decided to remove this worpdress installation and re-install a fresh new copy to resolve the error.

After doing that when I tried to re-activate my Stoni theme by putting the purchase code, but after putting that it is showing the error “THIS PURCHASE CODE ALREADY REGISTERED”.

Please help me

Hi

It is because you didn’t deregister the theme license before remove the wordpress (website). So, your theme license alraedy regostered there.
contact theme Author and let them know How to Contact your purchased theme Author, theme author will be happy to assist you.

Thanks