今天上午打开程序，在局域网运行下面的代码出错，但是前几天运行没有问题，不知问题出在哪里？请各位老师帮助看看。谢谢！！

            Case "当月日汇总"
                Dim sql As String
                Dim ny As String = Forms("数据载入").Controls("ComboBox1").Text
                If ny = "请选择年月" Then
                    MessageBox.Show("请点击日报填报,在右侧窗口选择报表年月","提示")
                    Return
                End If
                \'根据年月生成临时表
                sql = "Select TOP 100 PERCENT 报表年月,日期,单位,Sum(加工费) As 加工费, Sum(投工) As 投工,0.1-0.1 As 人均 FROM {日报源表} WHERE 报表年月 = " & ny & " Group By 报表年月,日期,单位 ORDER BY 单位,日期,报表年月"
                \'根据临时表生成年度汇总表
                Dim b As New CrossTableBuilder("当月日汇总",sql,"SCGL")
                b.HGroups.AddDef("单位")
                b.VGroups.AddDef("日期",DateGroupEnum.Month,"{0}月")
                b.VGroups.AddDef("日期",DateGroupEnum.Day,"{0}日")
                b.Totals.AddDef("加工费")
                b.Totals.AddDef("投工","在册人数")
                b.Totals.AddDef("人均","人均加工费")
                b.HorizontalTotal = True
                b.VerticalTotal = True
                b.Build()
                MainTable = Tables("当月日汇总") \'打开生成的统计表
                Dim t As Table = Tables("当月日汇总")
                Dim i As Integer =(Tables("当月日汇总").Cols.Count-4)/3
                For Each r As Row In t.Rows
                    For j As Byte = 1 To i
                        If r("投工_" & j) <>  0 Then
                            r("人均_" & j) = r("加工费_" & j)/r("投工_" & j)
                        End If
                    Next
                Next
                t.DataTable.DataCols.Add("合计_月均人数", Gettype(Double),"[合计_投工]/" & i)
                t.DataTable.DataCols.Add("合计_人均加工费", Gettype(Double),"合计_加工费/合计_月均人数")
                t.DataTable.DataCols.Add("合计_名次", Gettype(Byte))
                t.Cols.Remove("合计_投工","合计_人均")
                Dim drs As List(Of DataRow) = t.DataTable.Select("[单位] <> \'合计\'","合计_人均加工费 DESC")
                For n As Byte = 0 To drs.Count - 1 \'遍历所有行
                    If n > 0 AndAlso drs(n)("合计_人均加工费") = drs(n-1)("合计_人均加工费") Then \'如果月人均加工费和上一行相同
                        drs(n)("合计_名次") = drs(n-1)("合计_名次") \'则排名等于上一行
                    Else
                        drs(n)("合计_名次") = n + 1 \'设置名次
                    End If
                Next
                Dim s As String
                For Each dc As DataCol In  t.DataTable.DataCols
                    If dc.name <> "单位" AndAlso dc.name <> "合计_名次" Then
                        s="0.00"
                        t.DataTable.DataCols(dc.Name).SetFormat(s)
                    End  If
                Next
                t.Cols("单位").TextAlign = TextAlignEnum.Center
                t.Cols("合计_名次").TextAlign = TextAlignEnum.Center
                t.AutoSizeCols()
                MainTable =t
                For Each dc As DataCol In DataTables("当月日汇总").dataCols
                    If dc.name.StartsWith("投工_") Then
                        dc.SetFormat("####0")
                    End If
                Next
                With Tables("当月日汇总")
                    .Cols("合计_加工费").Move(1)
                    .Cols("合计_月均人数").Move(2)
                    .Cols("合计_人均加工费").Move(3)
                    .Cols("合计_名次").Move(4)
                End With
                Tables("当月日汇总").Cols.Frozen = 5
                DataTables("当月日汇总").SysStyles("Frozen").BackColor = Color.LightCyan
                DataTables("当月日汇总").SysStyles("CurrentRow").BackColor = Color.Blue
                DataTables("当月日汇总").SysStyles("CurrentRow").ForeColor = Color.White

数据类型应该没有问题，因为这个程序已经在局域网运行了一个多月了，放长假前都能正常运行，长假后第一天就出现问题，我也觉得很奇怪，附上日报源表的数据类型表，请狐爸老师再帮助看看上面的代码（因为通过上面的代码生成临时表），帮助分析一下，问题出在哪里？万分感谢！！