In range find this and do that - excel

Question

Have a range of cell with column headings as weeks In the range of cells I want to look for a number, say
1 if it finds a 1 then look at a column in said row for a variable, 2 or 4 whatever Now I want to put a triangle (can be copy and paste a cell) in the cell that has the "1" in it then skip over the number of week variable and add another triangle and keep doing this until the end of the range. Then skip down to the next row and do the same, until the end of the range.
Then change to the next page and do the same thing... through the whole workbook.
I think I have it done, don't know if it's the best way.
I get a error 91 at the end of the second loop, the first time the second loop ends it goes through the error code.
The second time the second loop ends it errors.
I don't understand it runs through once, but not twice.
Sub Add_Triangles2()
Dim Rng As Range
Dim OffNumber As Integer
Dim SetRange As Range
Dim OffsetRange As Range
Dim ws As Worksheet
Set SetRange = Sheets("Sheet1").Range("G25") ' Used to stop the second loop in range
Worksheets(1).Activate
Worksheets(1).Range("A1").Select ' Has item to be pasted (a triangle)
Selection.Copy
For Each ws In Worksheets
Worksheets(ws.Name).Activate
With Range("C4:G25")
Set Rng = .Find(1, LookIn:=xlValues)
If Not Rng Is Nothing Then
FirstAddress = Rng.Address
Do
Rng.Activate
ActiveSheet.Paste
Do
OffNumber = Range("A" & ActiveCell.Row)
Set OffsetRange = SetRange.Offset(0, -OffNumber)
If Not ActiveCell.Address < OffsetRange.Address Then
Exit Do
Else
End If
ActiveCell.Offset(, OffNumber).Select
ActiveSheet.Paste
Loop While (ActiveCell.Address <= OffsetRange.Address)
On Error GoTo ErrorLine
Set Rng = .FindNext(Rng)
Loop While Not Rng Is Nothing And Rng.Address <> FirstAddress
End If
End With
ErrorLine:
On Error GoTo 0
Application.EnableEvents = True
Next ws
Application.CutCopyMode = False
End Sub

Answer 1

I was not able to get an Error 91 using the data set I built from your explanation, maybe a screenshot of the layout could help recreate the issue.
However, I would do something like this, it will look at the value of each cell in the range C4:G25, and if it equals 1, it will paste the symbol stored in Cell A1.
Sub Add_Triangles2()
Dim Rng As Range
Dim rngSymbol As Range
Dim intFindNum As Integer
Dim ws As Worksheet
Set rngSymbol = Range("A1") 'Set range variable to hold address of symbol to be pasted
intFindNum = 1 'Used to hold number to find
Worksheets(1).Activate
For Each ws In Worksheets
Worksheets(ws.Name).Activate
For Each Rng In Range("C4:G25")
If Rng.Value = intFindNum Then
rngSymbol.Copy Rng
End If
Next Rng
Next ws
End Sub

Answer 2

I got it....
Sub Add_TriWorking()
Dim Rng As Range
Dim rngSymbol As Range
Dim intFindNum As Integer
Dim ws As Worksheet
Dim OffNumber As Integer
Dim SetRange As Range
Dim OffsetRange As Range
Set SetRange = Sheets("Sheet1").Range("G25") ' Used to stop the second loop in range
Set rngSymbol = Range("A1") 'Set range variable to hold address of symbol to be pasted
intFindNum = 1 'Used to hold number to find
Worksheets(1).Activate
For Each ws In Worksheets
Worksheets(ws.Name).Activate
For Each Rng In Range("C4:G25")
If Rng.Value = intFindNum Then
rngSymbol.Copy Rng
Rng.Activate
ActiveCell.Copy
Do
OffNumber = Range("A" & ActiveCell.Row)
Set OffsetRange = SetRange.Offset(0, -OffNumber)
If Not ActiveCell.Address < OffsetRange.Address Then
Exit Do
Else
End If
ActiveCell.Offset(, OffNumber).Select
ActiveSheet.Paste
Loop While (ActiveCell.Address <= OffsetRange.Address)
On Error GoTo ErrorLine
End If
Next Rng
ErrorLine:
On Error GoTo 0
Application.EnableEvents = True
Next ws
Application.CutCopyMode = False
End Sub