I can’t change the site homepage

Hello!

I am making a website whose provisional page is this: http://estudiosaladacriativa.com.br/

This week, I would need to modify the homepage for this one: http://estudiosaladacriativa.com.br/em-breve/

And next week, you should enter the definitive homepage, which is this:
http://estudiosaladacriativa.com.br/home/

However, by setting the “Em breve (Coming soon)” page as the homepage, it still shows the blank page with the logo: http://estudiosaladacriativa.com.br/

This blank page with the logo looks like a “Landing Page” template, but I can’t change this template or set any other page I made as the homepage.

Could someone help me please?

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