MemberPress requires an activation license key in order for your automatic plugin upgrades, and add-on installations to work.
As long as your license key is active, you can find it from your account page under the Downloads tab https://www.memberpress.com/account/?action=downloads.
If your license key is no longer active, then you may need to re-purchase MemberPress or Update your payment details if your renewal payment(s) failed recently.
If you're certain your payments are up to date, but you still can't find your license — please
contact our support for help!