We are end users just like you...
1) What is the domain
2) Do you have multiple GoDaddy accounts perhaps you are logged into the wrong one??
In addition to what @PL281 suggested, make sure your email address and payment information is up-to-date. Maybe you weren't receiving renewal emails due to expired payment info?
Either way, get on the phone with GoDaddy today to see if your site/files can be recovered/restored. There is a limited time for GoDaddy to help you with that if in fact your payment expired and your services cancelled due to no payment.