Hello,

OK. But, for now, I'm still looking for the place where I can do on the Category the same thing I did with the Universal content module = change the parameter in the tab:
Gestion du contenu via paramètres 
Under the section:
Image
I was on :
Yes, resize
with size parameters

I changed it ot:
Medium size thumbnail

This worked for the Universal content module, so I guess something somewhere was not liking the parameters like:
&w=110&h=110&aoe=1&q=95&zc=1&f=jpg

I still have a problem with the image of the category displayed at the top of this carousel, as you can see here :

 

Here, the link to the thumbnail looks like :
/components/com_flexicontent/librairies/phpthumb/phpThumb.php?src=//images/banners/images-diaporama/1280x800-pour-microdata/pompe-a-chaleur-blog-actualite-1280x800-min.jpg&w=127&h=79&aoe=1&q=95&f=jpg

➡️ Where can I find this resize parameter on the Category when it is displayed above the carousel of the Universal content? (because if I display the category "normally", in a category blog, the image is displayed normally, without any parameters at the end of the src link : Flexicontent only adds theose parameters inside the Universal content module)

Hi!
I just had a look at my new host, and under PHP I can see that gd and imagick are already both active.
When I inspect the missing thumbnails ont the front-end, I can see this link, for example:
www.mondomaine.fr/components/com_flexico...oe=1&q=95&zc=1&f=jpg
And if I look for this image, I can find it:
.../public_html/images/stories/flexicontent/l_image-lien-vers-galerie-photos-chauffe-eau-1280x800-min.jpg
All of this makes no sens for me, why would the thumbnail be still missing in those conditions?

Hello,
Yes, I just did, and nothing changes.

I had a look into : 
public_html/images/stories/flexicontent
and I can see the miniatures (even the one of the image I uploaded yesterday)
So it must be something with the "phpthumb" stuff which seems to be supposed to call those miniatures / thumbnails, no?

I'am also thinking: the fact that I restored the website on a new host, is it possible something has changed (like permissions or so)?