I finally solved the problem and it's really stupid...I had "looped" the permissions settings too much and unchecked certain boxes that it seemed logi...

Thanks @Tutrix for trying to help me.Please tell me that I have read and re-read all the documentation, the various topics on this possible problem, b...

I didn't create this group, maybe I renamed it to try to find a solution...Could the problem come from there?The group id is 4, the default...