Hilbert Curve VBA

[soldso]

Hello

I would like to ask for help in carrying out the Hilbert Curve project in VBA.
Drawing should be shown in excel spreadsheet.
Add a button where after clicking you can choose which iteration to appear.

I found one project on the internet, but it doesn't work. Maybe it can help so I send it in the attachment.

Thank you

[snb]

It doesn't.