Elementor “dont work” with Ocean WP

Hello,

I use OCEAN WP with French WP and everything works fine with Elementor. I have just done on a WP installation in English and there Elementor does not work here is the message :

Sorry the content area was no found on jour page

You must call ‘the_content’ function etc…

I tested with another theme and it works (Hello Elementor theme)
Even if I deactivate all the plugins it doesn’t work either

In advance, thank you for your help

All the bests