If you have paused your payouts, you can resume them by navigating to the Funds tab in the main Slush Pool menu. On the right side of your screen at the top you’ll see a button to Resume Payouts.
When you click the button, a popup will appear and you’ll be asked to confirm that you wish to resume your payouts. To proceed, just click the Resume button and enter your account password. If you have set up 2-factor authentication, you’ll be asked to input your 2FA password in order to confirm the action.