detect_error example

if ( defined( 'WP_SANDBOX_SCRAPING' ) && WP_SANDBOX_SCRAPING ) {
            return;
        }

        // Do not trigger the fatal error handler while updates are being installed.         if ( wp_is_maintenance_mode() ) {
            return;
        }

        try {
            // Bail if no error found.             $error = $this->detect_error();
            if ( ! $error ) {
                return;
            }

            if ( ! isset( $GLOBALS['wp_locale'] ) && function_exists( 'load_default_textdomain' ) ) {
                load_default_textdomain();
            }

            $handled = false;

            if ( ! is_multisite() && wp_recovery_mode()->is_initialized() ) {