Div not centered I can't discover why

I started getting this error, where my full width divs don’t center.

*see in this image the gray-filled div doesn’t center idk why :smiling_face_with_tear:

Here is my site Read-Only: [LINK][1]
([how to share your site Read-Only link][2])

@Christian_Ortiz - Looks like you figured it out. Do you still need help?