The Nagios application is not displaying the correct information. This commonly occurs after applying an update to the Nagios program.
Your web browsers cache has not been refreshed with the latest code since the update was applied to the Nagios product.
Here is a article that explains the problem in detail:
Wikipedia:Bypass your cache
In most web browsers, Pressing CTRL + F5 on your keyboard causes the web page to load directly instead of using the local cache. This will also update the local cache as the page is loaded.
For any support related questions please visit the Nagios Support Forums at:
Article ID: 142
Created On: Mon, Jan 25, 2016 at 5:46 PM
Last Updated On: Wed, Feb 10, 2016 at 7:55 PM
Authored by: tlea
Online URL: https://support.nagios.com/kb/article/pages-not-displaying-correctly-142.html