Error 48 when installing creative cloud for desktop on mac

hi jeff when installing creative cloud for desktop we have this problem, tried everything but no success on mac osx lion  the message that gives creative cloud for desktop app on installing is this: error code 48, a critical file/directory can't be access

I had the app but i decided to remove it because i have logged in in other machines, the log in windows told me to close the session on the other machine, i did that, and then started the problems

Now I'm stuck, have tried most of the solutions on the web and adobe forums and nothing works

Please help

Thanks so much