Help -- my PlusKit is disabled!

Pluskit disabling can mean two things

1. The little PlusKit icon in the left hand side is 'grayed out' and the plugin is shown disabled in the page inspector
   
2. The plugin no longer works -- or works for a little while and then stops.

For number 1 above that is normal and don't worry about it -- Pluskit automatically disables itself in the sidebar as it doesn't produce a 'page' per se but instead adds functions to existing pages.

For number 2 above it's likely you haven't registered the plugin. Without registration the plugin runs for about 10 minutes and then automatically stops working.