Damn ! thanks !
I ran the script. It failed and the last line was/recalbox/scripts/recalbox-support.sh: line 116: /recalbox/share/saves/recalbox-support-20190514153203.tar.gz: Permission denied
The share/save folder didn't have the writing permission on for guest.
Kodi and Games run fine now. So thanks for the tip :D
However, maybe some more logging could be made available for more self diagnose? Maybe it's somewhere else and I didn't look properly.