I trust you were able to renew successfully? For future reference IPS does not give me much control of invoices here, so you will need to contact them for such matters.
There is no setting for this. You could setup a high value to the "Submit wait time" setting so members can't submit again for a year or what ever.
What was the error?
Are you getting an error when upgrading?
It looks like the permissions are gone for your forms. If you go into the admin cp, can you set view permissions for the forms once again?