If there is no State ID number, you may request a corrected ID, but in most cases, the State ID is the same number as the Federal EIN.
By any chance did you work for the same employer in 2020. You could always check your 2020 tax papers to see if that W-2 had a state ID number on it. If it is the same employer it would be the same ID number.
Or you could simply enter the Federal EIN in the box for the State ID number.
