This errata is actually to an organization chart posted on the site and does not appear in the book. It is for the 1 April 1945 KStN 1162 f (fG), which was a mixed armored scout company consisting of Sd.Kfz. 234/1’s and 234/4’s, as well as a number of Sd.Kfz. 251 variants. The corrected chart can be seen on the errata page (very bottom of page) or the organizational chart page (again, very bottom of page).
Here is the chart in question:
Armored Scout Company “F”
(Mixed: Sd.Kfz 234 and Sd.Kfz. 251)