Notice of Proposed Tax Assessment from CA Franchise Tax Board Help

[Jcorry17]

I received a Notice of Proposed Tax Asessment from the CA Franchise Tax Board stating we undreported our income in 2021 and owe a significant amount of money for our 2021 return. I filed with Turbo Tax and don't think I purchased any additional plan for help with this stuff. Can I get help through turbo tax to understand if there is a mistake or I do in fact owe money? 

[Bsch4477]

You should get a letter explaining the adjustment. Call them if you have questions. TurboTax has no information about refund or penalty issues.