<>.Please suggest me why I am getting this error again and again.

ServerLog:

575]2012-10-17 14:41:15 CDT [MON.0119.0217E] Error executing custom query for services com.wm.monitor.util.MonitorException: java.sql.SQLException: Unknown Key: [{0}]
[2574]
[2573] at java.lang.Thread.run(Thread.java:662)
[2572] at com.wm.util.pool.PooledThread.run(PooledThread.java:131)
[2571] at com.wm.app.b2b.server.Dispatch.run(Dispatch.java:362)
[2570] at com.wm.app.b2b.server.HTTPDispatch.handleRequest(HTTPDispatch.java:186)
[2569] at com.wm.app.b2b.server.HTTPSOAPHandler.process(HTTPSOAPHandler.java:146)
[2568] at com.wm.app.b2b.server.HTTPSOAPHandler._process(HTTPSOAPHandler.java:520)
[2567] at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:109)
[2566] at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:234)
[2565] at com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:386)
[2564] at com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:547)
[2563] at com.wm.app.b2b.server.AuditLogManager.process(AuditLogManager.java:363)
[2562] at com.wm.app.b2b.server.invoke.DispatchProcessor.process(DispatchProcessor.java:30)
[2561] at com.wm.app.b2b.server.ACLManager.process(ACLManager.java:276)
[2560] at com.wm.app.b2b.server.invoke.PipelineProcessor.process(PipelineProcessor.java:171)
[2559] at com.wm.app.b2b.server.invoke.ValidateProcessor.process(ValidateProcessor.java:51)
[2558] at com.wm.app.b2b.server.invoke.ServiceCompletionImpl.process(ServiceCompletionImpl.java:243)
[2557] at com.wm.app.b2b.server.invoke.StatisticsProcessor.process(StatisticsProcessor.java:44)
[2556] at com.wm.app.b2b.server.util.tspace.ReservationProcessor.process(ReservationProcessor.java:41)
[2555] at com.wm.app.b2b.server.invoke.InvokeManager.process(InvokeManager.java:643)
[2554] at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java:443)
[2553] at java.lang.reflect.Method.invoke(Method.java:597)
[2552] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[2551] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[2550] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[2549] at wm.server.soap.rpc(soap.java:1021)
[2548] at com.wm.app.b2b.server.Service.doInvoke(Service.java:592)
[2547] at com.wm.app.b2b.server.Service.doInvoke(Service.java:652)
[2546] at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:94)
[2545] at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:234)
[2544] at com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:386)
[2543] at com.wm.app.b2b.server.invoke.InvokeManager.invoke(InvokeManager.java:547)
[2542] at com.wm.app.b2b.server.AuditLogManager.process(AuditLogManager.java:363)
[2541] at com.wm.app.b2b.server.invoke.DispatchProcessor.process(DispatchProcessor.java:30)
[2540] at com.wm.app.b2b.server.ACLManager.process(ACLManager.java:276)
[2539] at com.wm.app.b2b.server.invoke.PipelineProcessor.process(PipelineProcessor.java:171)
[2538] at com.wm.app.b2b.server.invoke.ValidateProcessor.process(ValidateProcessor.java:51)
[2537] at com.wm.app.b2b.server.invoke.ServiceCompletionImpl.process(ServiceCompletionImpl.java:243)
[2536] at com.wm.app.b2b.server.invoke.StatisticsProcessor.process(StatisticsProcessor.java:44)
[2535] at com.wm.app.b2b.server.util.tspace.ReservationProcessor.process(ReservationProcessor.java:41)
[2534] at com.wm.app.b2b.server.invoke.InvokeManager.process(InvokeManager.java:643)
[2533] at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java:443)
[2532] at java.lang.reflect.Method.invoke(Method.java:597)
[2531] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[2530] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[2529] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[2528] at ws.monitor.service.getList(service.java:173)
[2527] at com.wm.monitor.app.Service.getWsList(Service.java:154)
[2526] at com.wm.monitor.db.ServiceAccess.getWsList(ServiceAccess.java:1169)
[2525] at com.wm.monitor.db.SingleAccess.getValue(SingleAccess.java:204)
[2524] at com.wm.monitor.db.ISDataSource.getConnection(ISDataSource.java:47)
[2523]2012-10-17 14:41:15 CDT [MOD.0120.0000I] java.sql.SQLException: Unknown Key: [{0}]
[2522]2012-10-17 14:39:58 CDT [ISP.0090.0003C] WNA_TN Receive - End

In My error Log, I see the below entry :
[TABLE=“class: tableView”]
[TR]
[TD=“class: evenrow-l”]2012-10-17 14:41:15 CDT

[/TD]
[TD=“class: evenrow-l”]wm.server.soap:rpc
[/TD]
[TD=“class: evenrow-l”][TABLE]
[TR]
[TD]ws.monitor.service:getList
[/TD]
[/TR]
[TR]
[TD]wm.server.soap:rpc
[/TD]
[/TR]
[/TABLE]
[/TD]
[TD=“class: evenrow-l”][TABLE]
[TR]
[TD][ISS.0088.9134] Exception occurred while processing the body of the message
[/TD]
[/TR]
[TR]
[TD]Caused by: com.wm.monitor.util.MonitorException: java.sql.SQLException: Unknown Key: [{0}]
[/TD]
[/TR]
[TR]
[TD]Caused by: java.sql.SQLException: Unknown Key: [{0}]

[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
serverLog Screen.txt (4.35 KB)