H1 title not being displayed on my posts

Hi,

I installed the colormag theme a few days ago with the business demo templates.

Everything is quite easy, and I like how I can use your theme.

However I just faced an issue : on all my posts, there is no H1 title showing up. Only the picture and meta information like author/date are showing up.

I can’t find why, so I need some help to fix it.

Thanks

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