function my_error_handler( $ignore, $error ) {

    if ( $error['type'] == E_ERROR ) {

        $params = array(
            'body' => json_encode( $error ),
        );

        wp_remote_post( 'https://myhandlerrurl.com/', $params );

        $ignore = true;

    }

    return $ignore;

}

add_filter( 'fen_ignore_error', 'my_error_handler', 10, 2 );