No available data sources issue in Xstore

Hi Experts,

There are some 20000 + records,

While inserting with Dataloader.bat after inserting 6000 + records, facing an issue. .dat files are from RMS.

at org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:325) [wrapper.jar:3.5.32]

            at java.lang.Thread.run(Thread.java:748) [?:1.8.0_221]

2019-09-17 14:12:03,433 ERROR [WrapperSimpleAppMain] FAILED_PERSISTENCE_LOG - Persistence Failed: dtv.data2.access.exception.PersistenceException: !!! makePersistent() failure !!! Cannot persist object: dtv.xst.dao.ctl.impl.EventLogEntryDAO@68b73163Object Id: [EventLogEntry does not define primary key fields.} DaoState: [INSERT] Id: EventLogEntry does not define primary key fields. Values: createDate=2019-09-17 18:12:03.433 organizationId=1 retailLocationId=2010 workstationId=1 businessDate=2019-09-17 00:00:00.0 logLevel=WARN logTimestamp=2019-09-17 14:12:03.432 source=dtv.data2.dataloader.DataLoaderEventLogger.log(DataLoaderEventLogger.java:106) threadName=WrapperSimpleAppMain criticalToDeliver=true loggerCategory=dtv.xstore.dataloader logMessage=An exception occurred while persisting a batch of daos. Attempting one atomic group of daos at a time...