Error when running a working macro from a Ribbon - vba

Question

Below is a macro for Excel2010 in VBA. It's working only when I open VBA Code editor and run from the menu Debug. I tried to put it to Ribbon and run it from there but I've got this error:
Run-time error '1004':
Application-defined or object-defined error
Additionally, when I change all Range() into .Worksheet(i).Range(), the procedure does not run at all with the same error. It's like .Range does not seem to be part of Worksheet(i). I have no experience in Excel 2010 VBA.
Sub CopyAndRearrange()
Dim ns As Integer
Dim i As Integer
ns = ActiveWorkbook.Worksheets.Count
ActiveWorkbook.Sheets(ns).Cells.ClearContents
For i = 1 To ns - 1
With ActiveWorkbook
.Worksheets(i).Activate
Range("E1") = CInt(.Worksheets(i).Name)
Range(Range("G1"), Range("A1").End(xlDown).Offset(0, 7)) = "=IF(RC[-6]=0,"""",RC[-6] + R4C5"
Range(Range("I1"), Range("A1").End(xlDown).Offset(0, 8)) = "=RC[-6]"
Range(Range("G1"), Range("I1").End(xlDown)).Copy
Sheets(ns).Activate
If i = 1 Then
'Range(Range("G1"), Range("I1").End(xlDown)).Copy Destination:=Sheets(ns).Range("A1")
Sheets(ns).Range("A1").Select
Else
'Range(Range("G1"), Range("I1").End(xlDown)).Copy Destination:=Sheets(ns).Range("A1").End(xlDown).Offset(1, 0)
Sheets(ns).Range("A1").End(xlDown).Offset(1, 0).Select
End If
ActiveSheet.Paste Link:=True
Application.CutCopyMode = False
Application.ScreenUpdating = True
End With
Next
Sheets(ns).Range("A1").Select
End Sub
EDIT:
OK. I have slightly changed the code in hope I was wrong about referring to the right sheet etc. The problem is still there. The line: ActiveSheet.Range(rg1, rg1) = "=IF(RC[-6]=0,"""",RC[-6] + R4C5" causes the problem. Surprisingly, it is not the first that I refer to Range in the an active sheet and for some reasons, I really don't know why, I've got the error!!! To exhaust all possibilities, I have also tried these:
Explicitly re-create a Module in VBA Window
Re-open the file
Record a macro and insert a code in there
Nothing's worked so far. I have given up but maybe someone in future will see the problem and give a solution here.
Public Sub CopyAndRearrange()
Dim ns As Integer
Dim i As Integer
Dim ws As Worksheet
Dim wb As Workbook
Dim rg1 As Range
Dim rg2 As Range
Dim cell As Range
Set wb = ThisWorkbook
ns = wb.Worksheets.Count
wb.Sheets(ns).Cells.ClearContents
For i = 1 To ns - 1
With wb
Set ws = wb.Worksheets(i)
ws.Activate
ActiveSheet.Range("E1") = CInt(ActiveSheet.Name)
Set rg1 = ActiveSheet.Range("G1")
Set rg2 = ActiveSheet.Range("A1").End(xlDown).Offset(0, 7)
ActiveSheet.Range(rg1, rg1) = "=IF(RC[-6]=0,"""",RC[-6] + R4C5"
Set rg1 = ActiveSheet.Range("I1")
Set rg2 = ActiveSheet.Range("A1").End(xlDown).Offset(0, 8)
ActiveSheet.Range(rg1, rg2) = "=RC[-6]"
Set rg1 = ActiveSheet.Range("G1")
Set rg2 = ActiveSheet.Range("I1").End(xlDown)
ActiveSheet.Range(rg1, rg2).Copy
Sheets(ns).Activate
If i = 1 Then
ActiveSheet.Range("A1").Select
Else
ActiveSheet.Range("A1").End(xlDown).Offset(1, 0).Select
End If
ActiveSheet.Paste Link:=True
Application.CutCopyMode = False
Application.ScreenUpdating = True
End With
Next
Sheets(ns).Range("A1").Select
Set ws = Nothing
Set wb = Nothing
Set rg1 = Nothing
Set rg2 = Nothing
Set cell = Nothing
End Sub

Answer 1

Try the following:
Sub CopyAndRearrange(Control as IRibbionControl)
Adding the control allows the code to be executed from the ribbion.

Answer 2

I guess I found the answer to my own question.
The problem was missing bracket in this line:
ActiveSheet.Range(rg1, rg1) = "=IF(RC[-6]=0,"""",RC[-6] + R4C5"
which should be:
ActiveSheet.Range(rg1, rg1) = "=IF(RC[-6]=0,"""",RC[-6] + R4C5)"
If the error was more intelligible, I would not lose 2 days to look for this problem :/