Hello,
First of all, thank you for your purchase.
The “link you followed has expired” is a common error that occurs when trying to upload themes and plugins via the WordPress dashboard.
The error usually happens when the file you’re trying to upload is larger than the default upload and execution limits set by WordPress. The best way to fix the issue is to increase the default upload limits.
To fix this issue, you will need to change some server settings, please check details on this, here: https://www.wpkube.com/how-to-fix-the-link-you-followed-has-expired-error-in-wordpress/
Let me know if this helped.
Regards, Szabi – CodeRevolution.