If you have expired from your team you will need to login to your account where you will see a card that says "Renew Your Affiliation." Click renew on that card and it will open up a renewal application.
You can also go to your profile page for to see you list of affiliations, and any that need to be renewed. On the left side of the page, under "Affiliations", click the "Renewal Required" or "Renew now" button next to the affiliation needing renewed. That will now allow you to re-apply to that team.
The renewal application is the same as the original and requires that you provide current documentation. Once the application is processed, that information is archived and we are unable to access the documents again for subsequent applications.