UI refresh_ACA_W2 report_Month covered_Getting error on click of Preview.

1.Login to Azure
2.Select company:LONG For HSPL
3.Navigate to Home >> Company Home >> IRS Reports
4.Add new IRS report.
5.Select Type as 'W2 Report'.
6.Provide report name
7.Select Cost Calculation Basis as 'Pro-rated'
8.Consider Plan with 'Prorated'
9.Enter other required details.
10.Click on Preview.
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This error occur due to "Month covered" field.*
Actual: Received an error as 'An error has occurred during report processing. (rsProcessingAborted) Query execution failed for dataset 'DataSet1'. (rsErrorExecutingCommand) .For more information about this error navigate to the report server on the local server machine, or enable remote errors
Expected: Report should get open.

Note-It is working properly on LB