I had a similar problem today with elementor and phlox all day.
Basically only with Phlox plugins active it was giving problems when using elementor (grey page without displaying modules).
I tried several times to uninstall and reinstall elementor, but it didn’t work.
The only thing that worked was to disable the Phlox plugin, then go under the Themes settings, and update to the latest version the Phlox theme.
At this point with Elementor updated to the latest version and the Pholx theme updated it worked.
I hope it can work for you as well.
