Rejected tax returns

My tax returns continues to be rejected although all of the information is correct.  I am in the process of going through a divorce and filing as married filing separately.  For 2021, my husband and I filed jointly.  The AGI for 2021 is significantly higher than 2022.  I entered the entire AGI from the 2021 1040 form.  How can this be corrected?  Do I only list half of the AGI for 2021?