Why is my state tax refund amount showing up as $0 when it said my credit should be $534? I always get a state tax refund. Is it a glitch? I've never had this happen.

It said that my refund amount would be $534, but the amount at the top of the screen where it says "PA REFUND" is showing up as $0. I'm at the end of my review and I'm ready to submit, but it's not showing a state refund for me. I'm very confused. Any help would be much appreciated!