Document publisher: null pointer exception

Hi,
So I've started using Modelio since 2 days and I'm trying to work with the document publisher. I would like to generate a document from all my diagrams but also add some text which can not be generated like introduction etc.
So I've looked at some videos from your channel like this one: www.youtube.com/watch?v=P4GBwmDaTN4

But when I click on the "Open Editor" button, it doesn't open in Modelio, but a window with a "Null pointer exception" appears, totally blocking Modelio (task manager is at this point, my only option). BUT, a microsoft word window appear with a new blank document. I am not able to save the content to use it later.

What can I do.
Below are my specs:
Modeler Module: 9.0.06
Document Publisher: 4.8.22
Archimate Architect: 1.2.04
Template Editor: 4.8.22
Modelio: 3.8.0
Microsoft Office Word 16
I can not upgrade Modelio to another version (team reason).

Thanks.

I do not know if it could help in anyway but it appears that when I am creating a powerpoint it's working, but not with excel.
So it's only working with powerpoint, and not with excel nor word.

Ok so the bug seems to appear only in dual screen, when i'm working with only one screen I do not have any problem.. That's really strange.