Find value in column and change cell to left with an if statment - vba

Question

This VBA script should take the value in the cell A37 and check if its in the C column of another worksheet. When the number is found the column to the left should be changed to 0. If it is already 0 then a message box will inform the user and if the number does not exist another message box will inform them of this.
This is the VBA I am using to accomplish this. However, every time I try to run it there is a "compile error: Next without For"
Update This issue now is that I need to activate the cell that the fcell is in before doing an Active.cell offset
Sub Cancelled()
Dim x As Long
Dim regRange As Range
Dim fcell As Range
x = ThisWorkbook.Sheets("Welcome").Range("A37").Value
Set regRange = ThisWorkbook.Sheets("Registration").Range("C:C")
For Each fcell In regRange.Cells
If fcell.Value = x Then
ActiveCell.Offset(0, -1).Select
If ActiveCell.Value = 1 Then
ActiveCell.Value = 0
MsgBox "Changed to zero"
Exit Sub
Else
MsgBox "That registration number is already cancelled"
Exit Sub
End If
End If
Next fcell
MsgBox "That number does not exist"
End Sub

Answer 1

Edit for new question: No need to use Select and ActiveCell
If fcell.Value = x Then
If fcell.Offset(0,-1).Value = 1 Then
fcell.Offset(0,-1).Value = 0
...
Edit 2: A further suggestion: You could also use the Range.Find method. This will throw an error if nothing is found so you have to catch that:
On Error Resume Next 'If an error occurs, continue with the next line
Set fcell = regRange.Find(x)
On Error GoTo 0 'disable the error handler
If fcell Is Nothing Then 'If Find failed
MsgBox "That number does not exist"
Else
'do your stuff with fcell here
End If

Answer 2

Hope this is not too late to answer your question:
Sub Cancelled()
Dim x As Long
Dim regRange As Range
Dim fcell As Range
x = ThisWorkbook.Sheets("Welcome").Range("A7").Value
Set regRange = ThisWorkbook.Sheets("Registration").Range("C:C")
For Each fcell In regRange.Cells
If fcell.Value = x Then
If fcell.Offset(0, -1).Value = 1 Then
fcell.Offset(0, -1).Value = 0
MsgBox "Changed to zero"
Else
MsgBox "That registration number is already cancelled"
End If
Exit Sub
End If
Next fcell
MsgBox "That number does not exist"
End Sub
Instead of
Set regRange = ThisWorkbook.Sheets("Registration").Range("C:C")
its better to get the last row in Column C and then set your range as:
Dim lastRow As Long
lastRow = ThisWorkbook.Sheets("Registration").Cells(Rows.Count, "C").End(xlUp).Row
Set regRange = ThisWorkbook.Sheets("Registration").Range("C1:C" & lastRow)