Home page does not load until refresh

Hi,

All of a sudden I have had some issues with the home page of this website: https://haskinsglobal.org/
The home page (mostly the theme and images) does not load not until I refresh the page. The page however does get updated when I make modifications (using elementor).

I have tried to purge all cache, delete all puglins, put them back one by one, check the CSS, minify etc. nothing seems to work.
I am not code-savvy so I didn’t look into that and I have tried several things that I maybe shouldn’t have (mostly plugins to try to optimize the speed of the website).
From what I understand it has something to do with CSS but I do not know how to fix it.

If someone would have any idea of how I can solve this issue that’d be great!

Thanks,

JB

The page I need help with: [log in to see the link]