I got the basic info in and it has a message in red that says your ssn has been marked ineligible for work. How do I find out why or who? How do I check if its removed?

My W-2 isn't in yet, maybe it will go away when it comes in? Currently on a year long unpaid leave from Starbucks (a benefit to keep healthcare while taking a break from work, working another job isnt allowed during this time).