First there is no way to reverse the error ... CA will not give it back.
Next review what you did in the program to cause this error ...
You can verify the tax payment method you chose on the Electronic Filing Instructions for your 2018 Federal or State Tax Return page, next to Balance Due/Refund. To see the page, follow these instructions:
1. Open your return if it’s not already open.
2. On the [Your name], your 2018 federal return was accepted! screen, scroll down and select Add a State (don’t worry, we’re not adding a state) to access your tax forms and worksheets.
3. On the left side select Tax Tools then Print Center.
4. On the TurboTax Print Center screen, select Print, save or preview this year’s return.
5. On the next TurboTax Print Center screen, select 2018 federal returns and Include government and TurboTax worksheets (optional) then select View or print forms.