Problem to see chart for interfaces

Problem to see chart for interfaces

Hello,
 
I'm running OpManager build 9400 in a Windows 2008 R2 machine and I have problem to see chart for interfaces.
I'm sure that I saw chart working well for some machines but for some reasons charts stopping to work.But if I click on "Real Time" chart I see the it's work but no way to have data for chart and I still have "No Data Available".
Any Idea?
Best regards.
Matteo
 
P.S. See pictures for the problem
 
 
 

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