e-file transmission error

Using the desktop edition of TurboTax Deluxe 2021.  Completed my federal return and one state return, no errors are indicated, and my software is up to date.  I get an error when I attempt to e-file, indicating "The Intuit Electronic Filing System is having difficulty recognizing the data in the return you are sending."  It also indicates "- Tax Year 2021 transmissions are not available.  - TurboTax is not ready to process Tax Year 2021 for this return."

 

I typically file in early February.  Is there a delay this year?  What do these error messages mean?