Two things.
1) As of this date, Jan 19, the IRS has stated they will not start processing efiled returns until Jan 29. https://www.irs.gov/newsroom/2024-tax-filing-season-set-for-january-29-irs-continues-to-make-improve...
2. If you received a reject message, then than message has a reason or reject code in it. Without that reason or code, kinda makes it hard to help you here.
