BuddyPress.org

This page explains about it:

https://codex.wordpress.org/WP_DEBUG

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define( 'WP_DEBUG_DISPLAY', false );

in wp-config.php, there’s a section a bit over halfway down where WP_DEBUGis set to false, you can add the code there.