what theme are you using?
I suggest you to switch to default wp theme to verify

Go to wp-admin
Customize
Choose any page for the home page

– Disable all plugins

– Go to the folder of your active theme and add the following lines to the file functions.php:

error_reporting(E_ALL); ini_set('display_errors', 1);
define( 'WP_DEBUG', true);
define( 'WP_MEMORY_LIMIT', '256M' );