Beat,
That makes sense, since the plugin itself seemed to be hinting towards session data. Thanks for taking a quick look into that. When I talked to Joobi, they didn't seem to know why it would be causing the issue, but at least they have the heads up. Hopefully that is just an issue with the 'all-in-one' installer instead of the individual applications that many people use, like 'Acajoom'. Thanks again.
when you uninstall their all-in-one installer JSetup, it doesn't automatically uninstall the plugins that go with it. Apparently when you uninstall it there is some text that tells you to uninstall them yourself which I do not remember seeing. These plusgins to not say "joobi" anywhere at all so they're hidden in a sense and still enabled. I had to go into my extension installer, click on plugins and check the author. In some of their plugins the author name is "chris" - not even joobi! It's just poor planning on their part. I like their stuff, but they need to make it more user friendly.
I uninstalled all acajoom plugins but I still have the same problem
"The plugin CB Core has no administrator file $phpfile" is displaying when I click on CB Paid Subscriptions plugin.