managed system's Database Exceptions and Database Performance in Gray

Dear Friends,

Currently, we are using Solman7.1 SP8 monitoring systems, but all the managed system's

From tcode: SM_WORKCENTER--> Technical Monitoring-->System Monitoring, Database Exceptions and Database Performance are all in Gray (see attached screenshot)

Could you please advise what could be the cause and where can i see the log?

Landscape for your reference:

Solution Manager:

1. solman7.1 SP8.

2. System Preparation and Basis Configuration completed in Green

3.

ST-A/PI 01Q_700 0001 SAPKITAB7K

ST-PI 2008_1_700 0008 SAPKITLRD8

Managed system, ABAP+JAVA:

1. in Managed system, the ABAP stack: RFC status, Auto. Conf. Status, Plug-in Status, System Status are all in Green.  No update needed.

2.

      SAPOSCOL version  COLL 22.10 720 - v2.27, AMD/Intel x86_64 with Linux, 2013-08-06, 64 bit, single threaded, Non-Unicode

      compiled at   Nov 16 2013

      systemid      390 (AMD/Intel x86_64 with Linux)

      relno         7200

      patch text    COLL 22.10 720 - v2.27, AMD/Intel x86_64 with Linux, 2013-08-06

      patchno       518

      intno         20020600

3. Diagnostics Agent:  720, Patch 117, changelist 1295245

4.

EHP2 FOR SAP CRM 7.0

ST-PI 2008_1_700 0007 SAPKITLRD7

ST-A/PI 01Q_731 0000    

one more question: What kind of data gathered by Diagnostics Agent?  Where is the log.

I would like to fix the Gray issue asap.

Thanks for your support.

Dong Zhou