Reject Code F8962-070 happens when your return is missing Form 1095-A Health Insurance Marketplace Statement.
This rejection happens because the IRS has received information you were enrolled in a marketplace health insurance at some point during 2024 and you didn't include this information with your return. If you did not receive Form 1095-A you will need to contact your Health Insurance Marketplace for a copy.
The link below will redirect you to the IRS website, scroll down until you see Marketplace Contact Information. Locate your state for the contact phone number
The Health Insurance Market Place
To Fix the error and input your 1095-A into the system see the following link
How do I fix e-file reject F8962-070?