The IRS makes the rules, not the Marketplace. The IRS rejected your reurn because you need a Form 8962. Enter your 1095-A onto your return and Form 8962 will automatically generate.
Use Form 8962 to figure the amount of your premium tax credit (PTC) and reconcile it with advance payment of the premium tax credit (APTC).
You may take the PTC (and APTC may be paid) only for health insurance coverage in a qualified health plan (defined later) purchased through a Health Insurance Marketplace (Marketplace, also known as an Exchange). As a result, you should complete Form 8962 only for health insurance coverage in a qualified health plan purchased through a Marketplace. This includes a qualified health plan purchased on HealthCare.gov or through a State Marketplace.
If you or a member of your family enrolled in health insurance coverage for 2022 through a Marketplace, you should have received Form 1095-A, Health Insurance Marketplace Statement, from the Marketplace. Form 1095-A shows the months of coverage purchased through the Marketplace and any APTC paid to your insurance company to help cover your monthly premium. If APTC was paid on your behalf, or if APTC was not paid on your behalf but you wish to take the PTC, you must file Form 8962 and attach it to your tax return
https://www.irs.gov/instructions/i8962
