Inventory valuation Report-NAV 13 Upgrade Error

Hi, Am in process of upgrading reports to NAV 13…

While upgrading and compiling ]Report 10139-Inventory Valuation to NAV 13. I am getting error as

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In NAV 2009 R2 it is working perfectly,Grouping is as same as in Nav 2009 R2 layout… Can sum1 help …