Finding a cell based on the header of a section of data, then selecting the last row of that section - vba

Question

I am attempting to find the text of a header row based on the value of a cell relative to the cell that is clicked in. The way I have attempted to do this is follows:
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
Dim var1 As Variant
Dim var2 As Variant
Dim var3 As Variant
Dim FormName As String
FormName = "New Form"
Static NewFormCell As Range
Application.ScreenUpdating = False
If Not Intersect(Target, Range("G16:X80")) Is Nothing Then
If Target.Cells.Count = 1 Then
var1 = Cells(Target.Row, 2).Value
var2 = Cells(15, Target.Column).Value
If Not (IsEmpty(var1)) And Not (IsEmpty(var2)) And var2 <> "+" And Target.Interior.ColorIndex <> 2 And Target.Borders(xlEdgeLeft).LineStyle <> xlNone Then
If IsEmpty(Target) Then
Target.Value = "X"
Target.HorizontalAlignment = xlCenter
Target.VerticalAlignment = xlCenter
Target.Font.Bold = True
Dim Header As Range
Set Header = Range("A54:E160").Find(var2, LookIn:=xlValues)
Header.Offset(1, 1).End(xlDown).EntireRow.Select
Dim CopyCell As Range
'Header.End(xlDown).EntireRow.Insert
'Set CopyCell = Header.End(xlDown). [offset?]
'CopyCell.Value = var1
Else
Target.ClearContents
End If
Else
Exit Sub
End If
End If
End If
Application.ScreenUpdating = True
End Sub
The issue is VBA is throwing Run-Time Error 91 ("Object variable or With block variable not set"). It then highlights the last row in that section of code. Since I set that variable in the previous line, I'm not sure why I'm receiving this error or if I'm even going about this the right way.
Any input would be greatly appreciated!
EDIT: I cleared the above issue by searching over a wider range. The cell I wanted to select was merged, but I still assumed the value was stored within column A. But this code still isn't quite doing what I'd like it to:
I want to select the last row in the section (not the last row of data in the sheet, but the last contiguous data in column B), but right now my code is jumping me all the way to the bottom of the sheet.

Answer 1

The problem is that your .Find isn't finding the value. In this case, you can add some code to handle that.
...
Dim Header As Range
Set Header = Range("A59:A159").Find(var2, LookIn:=xlFormulas)
If Header Is Nothing Then
' There's no value found, so do something...
msgbox(var2 & " was not found in the range, will exit sub now."
Exit Sub
End If
MsgBox Header
...
...of course there are myriad ways/things you can do to handle this. If you still want to execute other code, then wrap everything in an If Header is Nothing Then // 'do something // Else // 'other code // End IF type thing.
It really just depends on what you want to do. Again, your error is being caused by the fact that the var2 isn't being found, so just find other things to do in that case.