E-File snafu

I have completed my 2021 Tax Year return. I E-filed like I do every year. The Fed rejects the filing. I have tried 4 times. Turbotax suggests I did not use the correct AGI. I checked my 2020 tax year return. I also got on IRS.gov and checked what they have in my account records. My filing and their records all agree with the AGI I am reporting with my E-filing. The AGI is not the problem. Does anyone have a suggestion what else the problem could be and a fix? Turbotax has not been any help. I know I can just mail my returns, but I do not want to do that and wait for my refund. It is rather large. I want it asap.

Please help if you can.