[SOLVED] - Why these galery refuse to work ???

Hello,
On 2 different site, i use Elastislide built in gallery.
On both sites, i have the same rules given.
On one site it works, on the other site, it doesn't..
I deactivate the different other part of the page to see if there is some conflict : nothing...
I'm quite lost and i would like to use this elastislide galery because it is simple for the user and with a good looking on the site.
My dev page is : dev2017.sportactive.net/en/Cycling-holidays-and-camps/mallorca-cycling-training-holidays.html
I use the last Joomla version and to be sure, i have upgraded FC V3.1.1 to V3.2.rc. No change...

Is somebody can tell me what do i miss here ?
Thanks

Hello

Which part of it is not working ?

you mean that only the thumbnails are shown
but the preview area to see the currently selected image is missing ?

Hi Georges,
Exactly... Why i dont get a "big" image ???
Thanks
Xavier

Hi Georges,
Is this a field issue or something else here ?
Thanks for your "all time" help
Xavier

Hi Georges,
Hi Everybody,

Back from holidays : it seems i need it as on my come back today, i take again this issue and found why the galery was not working.
And for the record, all was on my side, not on the field or FC : i don't know how i put this in place but in my css, i had a "display none" for the galery in my css. How ? When ? I don't know and that is not the problem : all is working and i'm confused to take your time for a so stupid thing.
Sorry for the time you have lost for me here for this soooo stupid thing.
Anyway, thanks for all.
Xavier
PS : by the way, thanks to the team for the new version !! I wait now for how this is going to work with the "pro" version and support