The line 26 on MI Schedule 1 is calculated based on yours and your spouse's (if applicable) ages. Return to the federal "My Info" section and edit your personal information. Delete and re-enter your birthdate and edit your spouse's (if applicable) information and delete and re-enter their birthdate. Continue to complete the section. Your MI tax or refund may adjust. You should be able to re-file.
@mimibs1