If you have accessed your page previously, use the resend page to get access to your license again
https://pyxeledit.com/get/resend.php
If your email has changed use your old email, then write the new one and any relevant info in the message box that appears (see image below).
Alternatively, use the Humble resender to find your Humble page, then use the link on that page to find your license.
https://www.humblebundle.com/resender
Write any relevant info to prove you are the owner of the license, such as
Humble transaction id (X123456789012)
Date of purchase
The name on your license
Your activation key
Your private license page with downloads and activation key