0 Error Object reference not set to an instance of an object. 3 John Hwang posted 2 Years Ago We did a series of upgrades from version 11 to the latest version (12.7 I believe).Oddly, the Data Views, Reports and Metrics page stopped working showing the following error message: "Error Object reference not set to an instance of an object." instead of the category block. Any ideas on how to fix this? Is it a "Page Parameter Key" issue?