If you do not already have a monthly subscription linked to your WPOven server or your current Subscription has failed or expired for some reason. You can go through the following steps to setup an automated monthly subscription for your WPOven server :
Step 1 : Login to your WPOven dashboard and Navigate to the 'Server' Section and select the Server for which you wish to create an automatic Monthly payment Subscription.
Step 2 : Go to the 'Billing' subtab and click on the 'Re-Subscribe' button.
Step 3 : If you already have a WPOven server monthly subscription, then you might see Paypal ask you to modify a subscription , but down below you should see an option to create a new subscription use that and you should be all set.