Images disappear after launching Force Regenerate Thumbnails

Hi,

Yesterday, after launching Force Regenerate Thumbnails, most of my articles pictures disappear (exemple of article without any pictures : https://www.for-interieur.fr/deco-scandinave/).

So far i’ve tried to desactivave 90% of my plugin to see if it solved the problem. But it didn’t work.

So, i don’t know where to look. Can you help me out?

PS : i use PHP v5.6