I have to heck an entry that i can not change. could i get some help ?

It sounds like there is an error on your 1099-R. If you are not able to make any adjustments in your entries there, you can always completely delete that 1099-R and start over. 

Here's how to delete a form:

1. Open or continue your return in TurboTax.
2. In the left menu, select Tax Tools and then Tools.
3. In the pop-up window Tool Center, choose Delete a form.
4. Select Delete next to the form/schedule/worksheet in the list and follow the instructions.

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@ladybirdtax-2020 wrote:
it state that box 12 should not be  greater than  gross distribution. on the form there is no state distribution has no amount. and i have seem to put an amount in that box

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Is this NY?

Box 14 is not usually required because it has been an 1099-R industrial standard for many years that if there is only one state in box 12 & 13 then the box 1 amount does not need to be allocated between two states - the entire box 1 amount is understood to be the state distribution so box 14 is just left blank.

But recently, there are at least two states that will reject 1099-R's with a state tax and a blank box 14 so it is okay to enter the box 1 amount into box 14 to satisfy the states requirement.