Maffo Banner Module

[MADKing]

Hi,

hope I get some help from someone.
I bought this fu...ng module from maffo and do not get any support for that. He even does not response any of my messages.

I do not get this module running.

In the readme he says

NOTE. If Maffo_Banners does not appear in the Parent Category Drop Down you need to upgrade your administration/category.php to the
latest version.

But which latest version is he meaning??

I do have the latest version 3.18.
I do not see the category I should see:

How to use Maffo_banner
-----------------------

1. Setting up a category: In your admin panel click on 'Edit Categories'. 'Maffo_Banners' should be in there as one of
you parent categories.

Nothing.

Anyone who knows if this module is working with version 3.18?

Thnx