I recently found out that my 2021 tax return was ever submitted even though the documents are in my TurboTax file. What happened, and how do I get TurboTax to submit it?

I only found out a month ago when I received notice of balance due from my state which included fines and interest adding another $1000 on top of the tax amount. They offset my 2024 refund to apply to 2021.