First is my challenge... When I updated my files to the 1475 build I could no longer view data... it would give me the No Guild Data error... but also would not allow me to pull up the Upload Profile screen... it would give me that same error...
So... I took a look at the forums and noticed that I may have done a few things wrong (no surprise there)... so I figured ok... let's make this simple and re-install... so I blew out the database and roster directory and ran a clean install starting from scratch using the 1475 build... still get the same results...mostly...
Currently... if I don't turn on any addons I can upload data and motor around the configuration settings... however if I turn on any addons then any time I try to access pretty much anything (including the addon configuration area) I get that error... the only way I can turn off the addons again is to use the back button in the browser...
Oh... and I also made sure that I have the current Character and Guild Profiler addons... and the last thing I did was to delete my CharacterProfile.lua and created one from scratch...
I am sure I have made this sound a lot more complicated than it really is... but I wanted to give as clear an understanding of what is going on as I could...