I found the error: I am an idiot. I found it weird that I didn't have the MOS shortcut, so I uninstalled and reinstalled everything and it works! I think I had to believe that the second part was installed automatically I see that, shame on me!
When I think that a few years ago I modified TATW (resources, add cities and unit stats) and that today I am wrong in an installation lol! Sorry for the inconvenience and thank you, this mod is great