This is what I am getting now. I can't uodate any apps thanks to this error. I have no idea how to fix this. I did enable the debug menu for the App store and reset the app store from there but that didn't help anything. I thought it was a permissions issue as I got this in console when I opened up the App store and tried to update an app. Then I realised El Captain has the different privelages now that supposedly do not need fixing. Why would I get "installAuth=NO rights" then? Just not sure what's really going on here. Would anyone know of a fix for this? Everytime I use pages and a few other apps they tell me to use the App Store to update them, but I can't as the App store is broken for me and I can't update anything. Any help on this issue would be muchly appreciated.