Disappearing Header Issue

Hi everyone,

I’m currently using OceanWP (Free version with Architecture child theme), with elementor. After doing a lot of modifications on it without checking the preview, I realised that my header disappeared including logo and main menu.

I don’t think that my plugins are interfering with it because I tried to desactivate them one by one but FYI I use “MyStickyMenu” “polylang” “Coming Soon CC” “WP Form Lite” added to classic oceanwp and elementor plugins (Header Footer Elementor etc… )…

The header has been made on Elementor Page Builder.

I really don’t know where to look, what could have interacted with it to make all the header disappear, if anyone has any idea I would be very glad for the help 🙂

Elementor 2.09
Wordpress 4.9.5–fr_FR,
Oceanwp 1.5.13

Many thanks in advance

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