Image Gallery Alignment

hello,
I used another theme and created posts. Now I use the Elementor theme but I have encountered a problem! In general, I have a real gallery (which I created with WordPress ), but when I see it in preview or publish mode, it is practically nothing like that i created !

in this link you can see what’s going on ….
https://hifrench.com/wp-content/uploads/2021/04/Screenshot-1351.png
i tried on the another theme and it works ….
https://hifrench.com/wp-content/uploads/2021/04/Screenshot-1352.pngbut how do i solve this problem with Hello Elementor
and thanks !