From your Mastermind.com Dashboard, click on Payment Gateway on the menu on the Left hand side of the page.
Click Connect New Stripe account
From here you can either sign into an existing Stripe account to connect it or complete the form to sign up for a new Stripe account.
If you sign in to an existing account, you will need to select which account you wish to connect (if you have multiple accounts under your login) and then click Connect my Stripe account.
Your Stripe account should now show under your Stripe Accounts menu.
You will now be able to select your Stripe account when setting up your Paid mastermind classes.