Also turns off deprecation warnings.

Put this into wp-config.php

ini_set('display_errors','Off');
ini_set('error_reporting', E_ALL );
define('WP_DEBUG', false);
define('WP_DEBUG_DISPLAY', false);

• Debian 11
• php 7.4

• https://www.wpbeginner.com/wp-tutorials/how-to-turn-off-php-errors-in-wordpress/