This is the reject message...........

There are pending updates from the Department of Revenue for topics related to your tax return. There will be a software update available on February 23, 2024 that addresses the issue. On or after that date, please access your return and update you software (for online products, this happens automatically). Proceed through and review your Illinois return, and re-transmit your return (you will not be charged again).

Alternatively, you may wish to print and mail your return to the proper taxing authority.