Need to fix taxes before I can submit

Won't let me file till I do another form it gave me a code

What form are you needed before you can file?  Were you given an error code?  Please clarify.

Says I need to submit another form

F1040-164-01

This error means you need to add Form 8862, which is used to claim Earned Income Credit after the IRS disallowed it in the past. 

You may get that message if you have been audited for Earned Income Credit, or if you had a change in your tax return that changed the amount of your Earned Income Credit. 

Here is how to add Form 8862 to your tax return. 

1. Sign in to your account and open your return.
2. Select Federal from the left side menu.
3. Select Deductions and Credits toward the top left.
4. Scroll down/ expand the list and look for You and Your Family.
5. Find Earned Income Credit and click on Start or Update to the right. 
6. On the screen titled, Looks like the Earned Income Credit may put more money in your pocket, click Continue.
7. Continue until you get to the question Do any of these uncommon situations apply?
8. Check the box that says, I/we got a letter/notice from the IRS telling me/us to fill out an 8862 form to claim the Earned Income Credit.
9. Select Continue and then Done.
10. On the Since you got an IRS notice, we need to check on a few things screen, select  No, none of these apply and I need to fill out the 8862 form.
11. Select Continue.
12. Answer the remaining questions.