There might be some help in this thread:
https://www.mobileread.com/forums/sho...ght=code+adobe.
I don't know where or if the Adobe registration shows on the eDGe. Gonna go look at mine.
Edit: Didn't find anything on the eDGe, but tried Adobe.com and found the suggestion for Code 9 to try again in 24 hours. So it may be a problem with Adobe and nothing wrong with your eDGe registration. Anyway, I hope that's the case!