filing for deceased person

hello.. last year I used turbo tax to file the final return for my mother's income tax . I need to file a final income tax return to report the sale of her home and land as the executor of the estate that was sold in 2024. My mother died December 2022 and we sold the property in 2024. In turbo tax I am getting an error message that her death date cant be 2022 and must be a later date....I  am trying to understand did i miss a step in filing?