MSS Approve Leave Request - Error

[S0019300750]

Dear All,

When manager clicks on Lanuch WebDynpro button, to approve/reject the leave request in UWL, I am getting following error message:

Critical Error

A critical error has occured. Processing of the service had to be terminated. Unsaved data has been lost.

Please contact your system administrator

com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: The current application triggered a termination with a short dump., error key: RFC_ERROR_SYSTEM_FAILURE

+ at com.sap.tc.webdynpro.modelimpl.dynamicrfc.DynamicRFCModelClassExecutable.execute(DynamicRFCModelClassExecutable.java:101)+

+ at com.sap.xss.hr.lea.form.FcForm.getCustomizing(FcForm.java:1019)+

+ at com.sap.xss.hr.lea.form.FcForm.onInit(FcForm.java:417)+

+ at com.sap.xss.hr.lea.form.wdp.InternalFcForm.onInit(InternalFcForm.java:2053)+

+ at com.sap.xss.hr.lea.form.FcFormInterface.onInit(FcFormInterface.java:184)+

+ at com.sap.xss.hr.lea.form.wdp.InternalFcFormInterface.onInit(InternalFcFormInterface.java:1911)+

+ at com.sap.xss.hr.lea.form.wdp.InternalFcFormInterface$External.onInit(InternalFcFormInterface.java:2007)+

+ at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPM.attachComponentToUsage(FPMComponent.java:922)+

+ at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPM.attachComponentToUsage(FPMComponent.java:891)+

+ at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPMProxy.attachComponentToUsage(FPMComponent.java:1084)+

+ at com.sap.xss.hr.lea.worklist.VcWorkList.onInit(VcWorkList.java:267)+

+ at com.sap.xss.hr.lea.worklist.wdp.InternalVcWorkList.onInit(InternalVcWorkList.java:363)+

+ at com.sap.xss.hr.lea.worklist.VcWorkListInterface.onInit(VcWorkListInterface.java:164)+

+ at com.sap.xss.hr.lea.worklist.wdp.InternalVcWorkListInterface.onInit(InternalVcWorkListInterface.java:144)+

+ at com.sap.xss.hr.lea.worklist.wdp.InternalVcWorkListInterface$External.onInit(InternalVcWorkListInterface.java:220)+

+ at com.sap.pcuigp.xssfpm.wd.FPMComponent.doProcessEvent(FPMComponent.java:564)+

+ at com.sap.pcuigp.xssfpm.wd.FPMComponent.doEventLoop(FPMComponent.java:438)+

+ at com.sap.pcuigp.xssfpm.wd.FPMComponent.wdDoInit(FPMComponent.java:196)+

In ECC system the dump says:

Short text of error message:

Infotype 0001 does not exist E

Long text of error message:

Technical information about the message:

Message class....... 53

Number.............. 999

Variable 1.......... "Infotype 0001 does not exist"

Variable 2.......... "E"

Variable 3.......... " "

Variable 4.......... " "

Please suggest the solution ?

[S0019300750]

Was problem with particular user..for others its working fine..as the earlier user had requests of other employee which was deleted by some other users..