I have logged in and installed WP File Manager on your site. I need the plugin so that I can edit your wp-config.php file to add the following:
define( 'WP_DEBUG_DISPLAY', false );
Without the code above, I would not be able to see the Fatal Error message which displays:
[14-Feb-2021 02:15:41 UTC] PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 1277952 bytes) in /usr/www/users/facesvwmwr/wp-includes/wp-db.php on line 2022
The fatal error means that you have exhausted your PHP memory limit. In order to resolve the issue, I ended up adding this in your wp-config.php file as well:
define( 'WP_MEMORY_LIMIT', '512M' );
define( 'WP_MAX_MEMORY_LIMIT', '728M' );
By default, WordPress will attempt to increase the memory allocated to PHP to 40MB (code is at the beginning of /wp-includes/default-constants.php) for single-site and 64MB for multisite, so the setting in wp-config.php should reflect something higher than 40MB or 64MB depending on your setup. Even if in your server settings you have set 512MB for the PHP memory limit, WordPress still caps it at around 40MB. That is why it is necessary to add those two lines to your config file.
Kindly check your page now and you will notice that I added a section “Added by X staff”. Please remove it afterward as I only added it to confirm to you that my changes were saved.