Upgrading NAV GRID to 1.6 NO ANSWER

We are using JP CE NAV GRID 1.5 right now on our website.
The update routine ask for updating to NAV Grid 1.6
But somehow I can not find a download side at all!

Is JP CE GRID the right Custom element or what to I have to do to get an update at all?

Joomla update panel shows the following informations!
JP CE Nav Grid 1.6
extensions.joomlapro.com/index.php?optio...lement=jp_ce_navgrid
jpro.studio/component/ochsubscriptions/file/jp-ce-nav-grid-1-6

The demo link I found on your side ends up with a 404 Error Message
But the video is still working!

regards
Horst Stuempfig

So I didn´t get any answer after more than 6 days!
What kind of support is that? I send you a ticket as well. No answer!