If you have this problem again, or if someone else has this problem, the "du" command can help the user find the issue by displaying the sizes of directories and files. I use "du -hx -d 1" to see the size of the directories in my current directory and I track the issue from there.Please I need your help. I really don't know what is happening.
I was using TestDisk and my disk is now full 99%.
I have no idea why and how to get my disk space free.
I cannot do anything because the disk is full and I don't see any file to delete.
EDIT : I finally found a huge file and I deleted it. Problem solved.