c# win app โปรแกรมทำงานนานๆ แล้ว Error หาสาเหตุไม่พบครับ

SET NOCOUNT OFF;
DECLARE @tmp_TableA TABLE (grpName varchar(10), 
                           grpValue varchar(10), 
                           grpID int, 
                           rowID int)
INSERT INTO @tmp_TableA
SELECT 'หอย', 'value1', 1, 1 UNION
SELECT 'หอย', 'value2', 1, 2 UNION
SELECT 'งาม', 'value3', 2, 3 UNION
SELECT 'งาม', 'value4', 2, 4 UNION
SELECT 'เพราะ', 'value5', 3, 5 UNION
SELECT 'เพราะ', 'value6', 3, 6 UNION
SELECT 'ขน', 'value7', 4, 7 UNION
SELECT 'ขน', 'value8', 4, 8 UNION
SELECT 'คน', 'value9', 5, 9 UNION
SELECT 'งาม', 'value10', 6, 10 UNION
SELECT 'เพราะ', 'value11', 7, 11

;WITH cte AS
(
  SELECT
      ROW_NUMBER() OVER(PARTITION BY grpID  ORDER BY grpID ) AS rnum,
      grpID
	  ,grpName
  FROM @tmp_TableA
)
UPDATE cte  SET grpName =''
WHERE rnum > 1
SELECT * FROM @tmp_TableA ORDER BY grpID 
GO

    Public Shared Function FuckStoreProcedure(ByVal k1 As Integer, ByVal k2 As String) As DataTable
        Dim s As XCData =
<![CDATA[SET NOCOUNT OFF;
         DECLARE @tmp_TableA TABLE (grpName varchar(10), 
                                    grpValue varchar(10), 
                                    grpID int, 
                                    rowID int)         
         INSERT INTO @tmp_TableA
         SELECT 'หอย', 'value1', 1, 1 UNION
         SELECT 'หอย', 'value2', 1, 2 UNION
         SELECT 'งาม', 'value3', 2, 3 UNION
         SELECT 'งาม', 'value4', 2, 4 UNION
         SELECT 'เพราะ', 'value5', 3, 5 UNION
         SELECT 'เพราะ', 'value6', 3, 6 UNION
         SELECT 'ขน', 'value7', 4, 7 UNION
         SELECT 'ขน', 'value8', 4, 8 UNION
         SELECT 'คน', 'value9', 5, 9 UNION
         SELECT 'งาม', 'value10', 6, 10 UNION
         SELECT 'เพราะ', 'value11', 7, 11         
         ;WITH cte AS
         (
           SELECT
               ROW_NUMBER() OVER(PARTITION BY grpID  ORDER BY grpID ) AS rnum,
               grpID
         	  ,grpName
           FROM @tmp_TableA
         )
         UPDATE cte  SET grpName = ''
         WHERE rnum > 1;       
         SELECT * FROM @tmp_TableA ORDER BY grpID;
         --GO
         --GO
         --GO
         --GO WITH ME.
]]>
        Dim dt = FuckStoreProcedure.Query(FormatSQLText(s.Value))
        Return dt
    End Function