I have purchased "gp premium" and it does not appear on my desktop

I have purchased "generatepress pro" and it does not appear on my desktop. It says: you have not bought any downloads !!!

The purchase email (Dec-24-2107) says:

Dear Noriaki,

Thank you for your purchase!

Your payment ID is: 456257

First thing to note is that GP Premium is a plugin, not a theme. Many people try installing GP Premium as a theme and receive an error.

Instead, install it as a plugin and you'll be good to go.

Please click on the link (s) below to download your files.

Note: These download links will expire in 24 hours to prevent link sharing.

If you created an account with us, you can login at any time to download the files.

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The bad thing is that the download link no longer works. license key also appears. Please I need your help. Thank you