It is telling me my 1095-a must be greater than $0 but that is the correct amount in the box according to my 1095-a

For the months where you were not covered by health insurance through one of the State Marketplace exchanges or through healhcare.gov, leave all the columns blank (empty), remove the zeros.

Don't enter zeroes in any of the required fields of TurboTax. Leave the spaces blank for the time that you didn't have your Marketplace Health Insurance.

To return to the entry screens to edit your entries, refer to the TurboTax Help article Where do I enter my 1095-A? for navigation instructions.