After updating NB, I'm getting an error 500 page AND my toolbar buttons are not working/responding and look grayed out/faded!1. Make sure the ordering of the system plugins for Ninjaboard are correct. There are two plugins involved which are shipping with the installation of Ninjaboard:
* System - Koowa
* System - Ninja Framework
Make sure they are ordered as shown above. Also check that System Koowa is always at 0 (zero) and System Ninja Framework is at least at 1 or higher. They can't be both at 0 (zero).