Change Tracking in MDM showing table empty from Portal

Hi Experts,

While accessing MDM change tracking history from portal, table that it is showing is empty.

As per note 1336601 checked all is okay.

While checking to the logs from portal

lication_Thread[impl:3]_58##0#0#Error##Plain###[jcc][t4][10335][10366][3.53.95] Invalid operation: Connection is closed. ERRORCODE=-4470, SQLSTATE=08003#

#1.#A6E5C754D50200800000082D00CB00980004ED693E3CBB07#1386936178359#com.sap.mdm.ChangeTrackingBean#sap.com/tc~wd~dispwda#com.sap.mdm.ChangeTrackingBean.SQLException in getConnection()#<userid>#374369##7D48A8FC63EE11E3A10800001EF2F9D6#7d48a8fc63ee11e3a10800001ef2f9d6-0#7d48a8fc63ee11e3a10800001ef2f9d6#SAPEngine_Application_Thread[impl:3]_58##0#0#Error##Plain###[jcc][t4][10335][10366][3.53.95] Invalid operation: Connection is closed. ERRORCODE=-4470, SQLSTATE=08003#

#1.#A6E5C754D50200800000082E00CB00980004ED693E3CBB82#1386936178359#com.sap.mdm.ChangeTrackingBean#sap.com/tc~wd~dispwda#com.sap.mdm.ChangeTrackingBean.SQLException in getLookupRecords()#<userid>#374369##7D48A8FC63EE11E3A10800001EF2F9D6#7d48a8fc63ee11e3a10800001ef2f9d6-0#7d48a8fc63ee11e3a10800001ef2f9d6#SAPEngine_Application_Thread[impl:3]_58##0#0#Error##Plain###[jcc][t4][10335][10366][3.53.95] Invalid operation: Connection is closed. ERRORCODE=-4470, SQLSTATE=08003#

Please suggest on it,what can be the issue.

Thanks,

Vaibhav