I had Community Bubbles 1.5.2 installed but disabled. I upgraded it to 1.6 and enabled it. Upon entering the Plugins section I found that it said "Errors loading plugin" at the Community Bubbles plugin. I tried uninstalling and reinstalling the plugin manually (not via the repository) but to no avail. "There is more information in the logs" it said, and here's the error...
We're running Confluence 3.0.1 and the following custom plugins:
New Code Macro Plugin
Content Formatting Macros
Copy Space Plugin
Page Information Tools