Named user license counts report AX 2012 R3 CU10 Blank

HI,

I am facing issue with a batch job: Named user license count reports processing, it fails by throwing the following errors, thus resulting named user license count show blank.

1. The value "" is not found in the map.

2. Microsoft.Dynamics.Ax.Xpp.ErrorException: Exception of type 'Microsoft.Dynamics.Ax.Xpp.ErrorException' was thrown.

   at Dynamics.Ax.Application.SysUserLicenseMiner.generateUserLicenseCountReportInfo() in SysUserLicenseMiner.generateUserLicenseCountReportInfo.xpp:line 99

   at Dynamics.Ax.Application.SysUserLicenseMiner.Run() in SysUserLicenseMiner.run.xpp:line 6

   at Dynamics.Ax.Application.BatchRun.runJobStaticCode(Int64 batchId) in BatchRun.runJobStaticCode.xpp:line 54

   at Dynamics.Ax.Application.BatchRun.runJobStatic(Int64 batchId) in BatchRun.runJobStatic.xpp:line 13

   at BatchRun::runJobStatic(Object[] )

   at Microsoft.Dynamics.Ax.Xpp.ReflectionCallHelper.MakeStaticCall(Type type, String MethodName, Object[] parameters)

   at BatchIL.taskThreadEntry(Object threadArg)

I would appreciate if anybody has any suggestion to fix this.