If you are expericing any issues with blank pages when logged out of your website then try this;
It seems some hosting providers are installing additional caching plugins along-side WordPress installations.
This is causing issues when using Elementor as your homepage as a blank page gets cached and displays incorrectly to your visitors.
At the moment we've found Bluehost, Hostgator and Sitepoint to be the common problem hosting providers but if you are using a different hosting provider and are expericing this issue, please let us know.
You need to delete the MU caching plugin.
This is found in your website under /wp-content/mu-plugins/ folder as below.
/wp-content/mu-plugins/php-edge.php /wp-content/mu-plugins/endurance-browser-cache.php /wp-content/mu-plugins/endurance-page-cache.php
You can delete the entire "mu-plugins" folder or any of the above files as required. Deleting the folder will not cause your website any issues it will simply stop the plugins from being used (which is what you want.)