Ops center data collection problem from master server

.My netbackup version is 7.0.1

Master, Media and ops center server at windows 2008

I install the opscenter through the  guidline found from

https://www-secure.symantec.com/connect/blogs/opscenter-installation-and...

I make a separate server for opscenter server and add master server. 

But I am facing some problem while gathering data from master server.

It fetches some data. some others are failed. Here is a snapshot

at monitoring window, many information are not shown

How I can proceed