only losses, why do I owe?

I’m trying to amend my 2020 return. In 2020, I made neither personal nor business income. After amending with TurboTax, my AGI was ($14k), taxable income was $0. My original already had losses, and the amended return only increased them.

 

Federal withholding was $486, and overpayment was $608.  State withholding was $57. 

I have not yet filed the amended returns. I owed nothing in my original return.

 

After amending, TurboTax indicates I now owe $122 to the IRS and $220 to CA FTB.

 

Why do I owe payment now?