Documentum Server Manager throws error

Hi Experts,

From my Documentum Server Manager log file I am getting the following error...

Because of this error I am not being able to login to DA as well as XMS agent...!!! I have restarted the server machine and all the services several times but still I am getting the same error.

Following are the error log with screenshot.

Any idea,

Thanks in advance..

2016-04-06T12:35:07.057000 5940[5188] 0000000000000000 [DM_WORKFLOW_I_AGENT_START]info: "Workflow agent worker (tid : 4864, session 010bd9cf8000000c) is started sucessfully."

2016-04-06T12:35:08.059000 5940[5188] 0000000000000000 [DM_SERVER_I_START]info: "Sending Initial Docbroker check-point "

2016-04-06T12:35:08.061000 5940[5188] 0000000000000000 [DM_MQ_I_DAEMON_START]info: "Message queue daemon (tid : 5104, session 010bd9cf80000456) is started sucessfully."

2016-04-06T12:35:08.082000 5940[4964] 010bd9cf80000003 [DM_DOCBROKER_I_PROJECTING]info: "Sending information to Docbroker located on host (NKXCP22) with port (1489). Information: (Config(corp), Proximity(1), Status(Open), Dormancy Status(Active))."

0 [main] ERROR com.documentum.fc.common.impl.logging.LoggingConfigurator - Problem locating log4j configuration

2 [main] WARN com.documentum.fc.common.impl.logging.LoggingConfigurator - Using default log4j configuration

5 [main] ERROR com.documentum.fc.common.impl.preferences.PreferencesManager - [DFC_PREFERENCE_LOAD_FAILED] Failed to load persistent preferences from null

java.io.FileNotFoundException: dfc.properties

at com.documentum.fc.common.impl.preferences.PreferencesManager.locateMainPersistentStore(PreferencesManager.java:378)

at com.documentum.fc.common.impl.preferences.PreferencesManager.readPersistentProperties(PreferencesManager.java:329)

at com.documentum.fc.common.impl.preferences.PreferencesManager.<init>(PreferencesManager.java:37)

at com.documentum.fc.common.DfPreferences.initialize(DfPreferences.java:64)

at com.documentum.fc.common.DfPreferences.getInstance(DfPreferences.java:43)

at com.documentum.dmcl.impl.DmclApiNativeAdapter$PreferencesObserver.<init>(DmclApiNativeAdapter.java:322)

at com.documentum.dmcl.impl.DmclApiNativeAdapter.<init>(DmclApiNativeAdapter.java:47)

at com.documentum.dmcl.impl.DmclApiNativeAdapter.<clinit>(DmclApiNativeAdapter.java:336)

Wed Apr 06 12:36:00 2016 [INFORMATION] [AGENTEXEC 10584] Detected during program initialization: Version: 7.1.0150.0264 Win64

Wed Apr 06 12:36:01 2016 [ERROR] [AGENTEXEC 10584] Detected during program initialization: Command Failed: connect,corp.corp,dmadmin,'',,,try_native_first, status: 0, with error message [DM_DOCBROKER_E_NO_DOCBROKERS]error: "No DocBrokers are configured"

Wed Apr 06 12:36:01 2016 [FATAL ERROR] [AGENTEXEC 10584] Detected during program initialization: Command Failed: connect,corp.corp,dmadmin,'',,,try_native_first, status: 0, with error message .

The dm_agent_exec utility is exiting due to a fatal error.

2016-04-06T12:37:04.646000 5940[8724] 010bd9cf80000002 [DM_SESSION_W_RESTART_AGENT_EXEC]warning: "The agent exec program has stopped running. It will be restarted."