Hide/Show Image By Month

I have a form where users will fill out data over the course of the month. When all required data is submitted, I have an image of a check mark show up to indicate that the month's information is complete.

How can I schedule the images to reset to

image.visible = False

when the workbook is opened for the first time the following month? Auto Merged Post;I've done some code that will get this done and put it in a workbook_open module. It will look at the destination fields for data for the current month and if they are empty, make the referenced image invisible.

But I am running into an error. It is saying "Object Required" and when I hover it says "false = false"

Here is the sample of the

Private Sub Workbook_Open()
With Sheets("Checklist")
For Each c In . Range("A6", .Range("A69"))
If Month(c) = Month(Now()) And Year(c) = Year(Now()) And c.Offset(0, 3) = "" Then
Image1.Visible = False
End If
Next c
End With
End Sub