2025 E-Filing - AGI's

I attempted to E-file my daughter and son-in-law's taxes (Married Filing Jointly) but it rejected 4 times.  I kept saying there was something wrong with the AGI.  Turbo Tax Deluxe kept asking me for individual AGI's from 2024, but they only had 1 AGI because the filed jointly in 2024 but did it via mail because they had to pay.  I was told to try entering $0 into the Agi but each time is was remove by the program.  Why did it ask me for 2 AGIs when they only had 1 in 2024?  It is very frustrating to re-submit and have it rejected constantly.