If you see the following error message in Clickker, it is related to a bug in IIS (Internet Information Services):

Object reference not set to an instance of an object. [TypeInitializationException: The type initializer for '' threw an exception]. Clickker.API.MvcApplication.Application_Start() +0

Solution:

Restart the Clickker website within the IIS or restart the IIS in its entirety.

• Via Start - Run, type in "inetmgr" followed by
• Unfold "Sites" in left-hand section
• Right-click on the Clickker website
• Select "Manage website".
• Choose "Restart"
• Should this not lead to a solution, the entire IIS should be rebooted
• To do so, in left-hand section, click on most high level (the name of the server) and;
• Click on right mouse button and choose "Stop" and then start or click on "Restart" on the far right under "Actions".