License Key Expired

Trying again to install and connect. Originally using version 5, wasn’t able to use a Team Join URL (unable to connect to servers (Tried in May). Updated to Version 16 (Current) and whenever I try and create a team, I get a “That license key you used is expired” message.

Requested 2 more license keys and I get the same “expired” message when creating teams. Is there something wrong with my subscription, an error with my account?