Moesia Widgets on Homepage not under each other anymore but next to each other

It might have happened with the most current wordpress update. I am not quite sure. My homepage has converted to landscape layout messing up all the widgets. I don’t understand. There is no portait/landscape layout option as far as I can see. Only my first widget on the page – a video – is positioned by itself on the top of the page. Everything else like Services and Projects is shown underneath the video next to each other.

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