Live page errors should be hidden

In your wp-config.php look for the line reading:

define( 'WP_DEBUG', false );

(This is set to false by default, if you’re troubleshooting it may be set to true on your install)

After it, add:

if( WP_DEBUG == true ) {

    /** Don't display WP errors */
    define( 'WP_DEBUG_DISPLAY', false );

    /** Log errors to debug.log in /wp-content instead */
    define( 'WP_DEBUG_LOG', true );

    /** Suppress PHP errors, which are normally turned on by WP_DEBUG */
    @ini_set( 'display_errors',0 );         
}

You should ideally be troubleshooting these errors on a local/dev copy of your site with an environment as close to the live site as possible.