My suggestion is (from over HERE):
The discrepancies in the Player's Guide versus what's presented in the AP books between the Silver Ravens being unheard of and, at the same time, them having just disappeared from Kintargo is easy to fix. Change any recent mention of the Raven's to the Bellflower Network and it all makes a lot more sense.
What I told my players in regard to the Player's Guide is that it has some errors and to change it according to this:
Page 9: Meeting a Contact - Replace all instances of "Silver Ravens" with "Bellflower Network"
Page 12-13: Star Struck - With the exception of Jackdaw (who is simply known as a folk hero from the end of the civil war and hasn't been seen in the last 80 years) the people listed have nothing to do with the Silver Ravens of old, nor the Bellflower Network. They are simply people that would have issues with Barzillai Thrune and haven't been seen since a few days after Barzillai came to town and instituted martial law.
Page 20 "Silver Ravens" section - Replace all instances of "Silver Ravens" with "Bellflower Network"
That fixes the contradictory information as to if people know of the Ravens or not (most people don't know about them), makes it so that it doesn't seem like the previous lord-mayor, Jilia Bainilus, as well as the lictor of the Order of the Torrent have ties to the Silver Ravens (because that seems really weird and out of place), and it shows that the Bellflower Network was established before Barzillai came to town and therefore gives more weight to what Laria has to say about what not to do.