Andre,
If you visit your account page/downloads here: https://www.wcvendors.com/my-account/downloads/
You should be able to retrieve your license keys for those.
You can use your license on one site- so your old license, if it is still valid, can be used for one site, and your new license on another site.
I can see that both of your licenses are not showing as activated on our end; on each website, go to: wp admin > settings > WC Vendors License and activate using your email and the respective license key to activate the license.
