I have a client return where the federal was accepted but the state was rejected with the following message:

"When State1099G Line 10a StateAbbreviationCd is equal to IL, and the corresponding State1099G Line 11 StateTaxWithheldAmt is greater than zero, State1099G PayerEIN must be equal to the FEIN for the Illinois Department of Employment Security. Enter the information exactly as it appears on your 1099G. If State1099G Line 10a State is blank, use Payer state code."

I've checked the information with the 1099-G and everything is correctly filled out. Could there be a reason for this error that I am missing?