I amended a return for 2022 w/ $19k take home, and had to pay $3k? This must be an error. Who can I talk to or find out more about this from?

Amended a return from 2022 with a W2 from Washington State (filing in Nevada). I made $21k with $19k take home, and I had to pay almost $3k on it? Any information on this or directions to who I could talk to would be much obliged.