I successfully renewed mine just now.  I should have read @IRonMaN 's advice first -- you have to ask twice to get them to email a code once.  And then it takes a few minutes.  And then you have to change your password and do it all again.  Then when I paid the $30.75 I got a screen that said "Congratulations!  Your PTIN Renewal was successful."  And it also says "Status:  Expired."

They also ask when my professional accreditation expires.  I don't pay my State Bar dues until January, but I enter "December 2023" anyway.  Don't tell anyone at IRS.