Elementor dashboard never stops loading

Hi,

I have started working on a new site, but I could not use Elementor yet, because the dashboard on the left never stops loading.

Please find attached screenshot on the following link: https://fundamentorp.com.br/wp-content/uploads/2019/05/loading.png

Could you someone please enlight me about what to do?

Thank you.

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