what does this mean? Illinois return rejection Reject Code IL1040-11870-1

[maglib]

  Error code IL1040-11870-1 most likely indicates that the IL-PIN, Driver’s License/State ID, or prior-year Adjusted Gross Income (AGI) on your Illinois return does not match the Illinois Department of Revenue (IDOR) records. This mismatch prevents signature verification. 

• You can verify your PIN here IDOR PIN INQUIRY , 
• your prior-year AGI must match exactly and if you amended, use the amended AGI figures.
• Ensure your Illinois Driver’s License or State ID number is entered correctly 
• A dependent on your return was already claimed on another tax return.
• EIN or employer name mismatch when entering in your W-2.

  TO MAKE THE CHANGES online, your return is not considered accepted so DO NOT amend.  

  1. Sign into your TurboTax account 
  2. Select Fix my return to see your reject code and explanation
  3. Select Fix it now and follow the instructions to update the info causing the reject
  4. Once you've fixed the error, select File in the left-hand menu and follow the instructions to either e-file or file by mail

     TO MAKE the CHANGES on Desktop:

     1. Locate the Error: Navigate to the File tab or dashboard to view the specific rejection code and reason.
     2. Fix the Error: Click Fix it now to be directed to the screen needing correction (e.g., AGI mismatch, SSN error).
     3. Re-file: Select File in the menu, ensure it is set to "e-file," and follow prompts to resubmit.

        If this continues, you can file by mail.

@headchoper18