Promptly rejected federal tax return e-filing for no good reason at all

I filed by 2023 federal tax return electronically, was promptly rejected within minutes.  TurboTax e-file status has the following explanation: "If the Primary SSN appears more than once in the e-File database, then "PINTypeCd" in the Return Header must not have the value "Self-Select On-Line""  What does this mean?  Furthermore, it says: "The IRD has already received a return with the taxpayer's name and/or Social Security number (SSN) entered on this return. If the IRS receives two returns containing the same name and SSN, the second return is considered a duplicate.  This situation can occur for several reasons, including transposed numbers on the SSN, misspelled or incomplete names, forgotten you've already filed, identity theft, etc.  The IRS rejects duplicate returns and the taxpayer on this return cannot participate in the Self-Select PIN program.  If you have not previously attempted to file this return, contact the IRS at [phone number removed]."  I have since logged into my IRS account to verify that nobody has filed 2023 return under my name, so what the hell is going on?  On the second page of Turbo Tax explanation, it said "The IRS Couldn't Confirm your Identity, It looks like the AGI amount entered before filing didn't match what the IRS has in their database.  I again logged into my IRS account for 2022, and verified the AGI recorded there is an exact match to what I entered this year, and also agrees to my printed AGI record from 2022.  So none of the explanation makes any sense at all.  I am at a loss as to exactly what is the cause of this rejection, and how to fix the situation