RUNTIME ERROR 91 for USERFORM CODE

[profowo]

I am new in learning Userform VBA code, I created a Userform having labels,textbox and multipage with ClsTabMenu,Module1 and Userform Codes but on clicking run to load on VBA home, it displayed

Run-time error "91"
Object Variable or With block variable not set

find codes below

clsTabMenu code

Private Declare PtrSafe Function LoadCursor Lib "user32" Alias "LoadCursorA" (ByVal hInstance As Long, ByVal lpCursorName As Any) As Long
Private Declare PtrSafe Function SetCursor Lib "user32" (ByVal hCursor As Long) As Long

'ColorDestaq

Const ColorDestaq = 16730978

Public WithEvents mForm As MSForms.UserForm
Public WithEvents mPage As MSForms.MultiPage

Public WithEvents TabLabel As MSForms.Label
Public WithEvents TabIcon As MSForms.Label
Public WithEvents ActiveTab As MSForms.Label
Public WithEvents TabLine As MSForms.Label

Public LabelTop As Integer
Public LabelLeft As Long
Public LineLeft As Integer

Const IDC_HAND As Long = 32649

Sub MouseMoveIcon()
Dim hCursor As Long
hCursor = LoadCursor(0, ByVal IDC_HAND)
SetCursor hCursor
End Sub
Sub CreateTabMenu(form As MSForms.UserForm, muPage As MSForms.MultiPage)
Dim Ctrl As Control
Dim mPageName As String
Dim tempCol As New Collection
Dim IconCode As String

Set mForm = form
Set mPage = muPage

i = 1
'//First, the labels are checked and added to the collection in order.

head:
For Each Ctrl In mForm.Controls
TagValue = GetValue(Ctrl, 0)
mPageName = GetValue(Ctrl, 1)
If TagValue = "TabMenu" And mPageName = mPage.Name Then

If CInt(GetValue(Ctrl, 2)) = i Then
tempCol.Add Ctrl
i = i + 1

GoTo head:
End If
End If
Next


'//Number of tabmenu elements from form height and between them
'//We remove as much as the space and divide it into two, leaving equal space from above and below.
LabelTop = (mForm.InsideHeight - ((tempCol.Count + tempCol.Count) * 20)) / 2

Index = 1

'//We are designing the elements we have added to the Collection named tempcol above.
For i = 1 To tempCol.Count

Set Ctrl = tempCol(i)
LabelDesign Ctrl
LineLeft = Ctrl.Left + Ctrl.Width + 15

If GetValue(Ctrl, 2) = 1 Then

'//If ctrl is the first Tablabel, activeTab is created
Set ActiveTab = mForm.Controls.Add("Forms.Label.1", "ActiveTab")
With ActiveTab
.Height = 40
.Width = 4
.BackColor = ColorDestaq
.BackStyle = fmBackStyleOpaque
.Top = LabelTop - 10
.Left = LineLeft - 1
End With

'//In the same way, the line on the side is adjusted according to the first element.
Set TabLine = mForm.Controls.Add("Forms.Label.1", "TabLine")
With TabLine
.BackColor = RGB(212, 212, 212)
.Width = 1.4
.Left = LineLeft
.BackStyle = fmBackStyleOpaque
.ZOrder 1
End With
Ctrl.ForeColor = ColorDestaq
Ctrl.Font.Name = "Poppins"
Ctrl.Font.Bold = True

LabelLeft = Ctrl.Left
Else

End If
Ctrl.Left = LabelLeft

IconCode = tempCol(i).ControlTipText
'//if the ControlTiptex of the control is full, the icon is created
If IconCode <> "" Then
Set TabIcon = mForm.Controls.Add("Forms.Label.1", "TabIcon" & tempCol(i))
With TabIcon
.Font.Name = "Segoe MDL2 Assets"
.Font.Size = 14
.ForeColor = RGB(51, 51, 51)
.BackStyle = fmBackStyleTransparent
.Caption = ChrW("&H" & tempCol(i).ControlTipText)
.Left = Ctrl.Left - 35
.Top = LabelTop
.ZOrder 1
End With
End If

LabelTop = LabelTop + Ctrl.Height + 20

Set tb = New ClsTabMenu
Set tb.TabLabel = Ctrl
Set tb.ActiveTab = ActiveTab
Set tb.mForm = mForm
Set tb.mPage = mPage
tbCol.Add tb

' Set TabLabel = Nothing
Next

With TabLine
.Height = LabelTop + 20
.Top = (mForm.InsideHeight - .Height) / 2
End With

'//We set the transition effect on each page by making multipage style settings
With mPage
.Style = fmTabStyleNone
.Top = 0
.Value = 0
.Left = TabLine.Left + 8

For i = 0 To .Pages.Count - 1
With .Pages(i)
.TransitionEffect = 7 '2 '3
.TransitionPeriod = 300
End With
Next i

End With

End Sub
Sub LabelDesign(Ctrl As MSForms.Label)
With Ctrl
.Font.Name = "Poppins"
.Font.Bold = True
.Font.Size = 11
.ForeColor = vbGrayText
.Top = LabelTop
.Width = 110
.Height = 20
.Left = .Left + 25
.Caption = WorksheetFunction.Proper(.Caption)
.BackStyle = fmBackStyleTransparent
' .BorderStyle = fmBorderStyleSingle
.TextAlign = fmTextAlignLeft

End With
End Sub
Function GetValue(Ctrl As Control, cIndex As Integer)
On Error Resume Next
GetValue = Split(Ctrl.Tag, "-")(cIndex)
End Function

Private Sub TabLabel_Click()
Dim mPageName As String
Dim iTag As Integer
Dim speed As Integer

On Error GoTo err:


'//Label's order is taken
iTag = GetValue(TabLabel, 2) - 1
mPageName = GetValue(TabLabel, 1)

'//Once tum TabLabellar standart hale getirilir
'//For which multipage it will work
TabLabelOut TabLabel

'//the active label is marked
With TabLabel
.ForeColor = ColorDestaq
.Font.Name = "Poppins"
.Font.Bold = True
End With

If TabLabel = "Logout" Then Unload mForm

'//The difference between the current value of Multipage and the value to be assigned is taken and the speed is adjusted
speed = Abs(iTag - mForm.Controls(mPageName).Value)

With ActiveTab
Do While .Top < TabLabel.Top - 10
DoEvents
.Top = .Top + (0.05 * speed)
Loop

Do While .Top > TabLabel.Top - 10
DoEvents
.Top = .Top - (0.05 * speed)
Loop
End With

'//Multipage value is assigned
mForm.Controls(mPageName).Value = iTag

err:
If err.Number = 380 Then
MsgBox "You need To add a New page"
End If
End Sub
Sub TabLabelOut(Ctrl As MSForms.Label)
Dim mPageName As String

'//Only MultiPage name is taken so that it does not affect other labels in the form.
mPageName = GetValue(Ctrl, 1)

Dim ctr As Control
For Each ctr In mForm.Controls

If TypeName(Ctrl) = "Label" Then

'//if tag contains Multipage name, it is standardized
If InStr(1, ctr.Tag, mPageName) <> 0 Then
ctr.ForeColor = vbGrayText
ctr.Font.Name = "Poppins"
ctr.Font.Bold = True
End If
End If
Next

End Sub

Private Sub TabLabel_MouseMove(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
MouseMoveIcon
End Sub


Userform1 Code

Private Sub UserForm_Initialize()
' Ensure the class instance tb is initialized
Set tb = New ClsTabMenu

' Ensure MultiPage1 exists before calling CreateTabMenu
If Not MultiPage1 Is Nothing Then
tb.CreateTabMenu Me, MultiPage1
Else
MsgBox "MultiPage1 could not be found."
End If
End Sub


Module1 code

Public tb As New ClsTabMenu
Public tbCol As New Collection

 

[6StringJazzer]

What line of code is raising the error?