Compatibility Mode

“Value cannot be null. Parameter name: token” for K2 links on SP2013 site in SP2010 compatibility mode

When you migrate Sharepoint and K2 you may run into a problem where all K2 links for your site just give you “Value cannot be null.  Parameter name: token.” I end up having issue after just changing site collection compatibility range (for testing purposes, here is how to do it) and then creating new site within “Value cannot be null. Parameter name: token” for K2 links on SP2013 site in SP2010 compatibility mode