Sadly, I don’t think I know enough about those subjects to deal with it myself 
@msurguy I also found out that you need to be very precise… And I did, indeed, specified all the parameters to get the error messages I posted. So no luck for me it is not the issue here.
I have another weird behavior when using raspistill because when I use the -p parameter I get no preview. I can save a picture and even a video but no matter wich command line I try I can’t manage to have a live preview of the camera…
I updated everything yesterday and I have 2 or 3 more things to try but I think I’ll have to change the camera and try with an official picamera.
Thank you for your time!