/**
                 * Routes for show constructor package to users
                 */
                Route::group(['prefix' => 'constructor'], function () {
                    Route::get('section/{section}')->name('constructor.section.one');
                    Route::get('analytics/{analytics}')->name('constructor.analytics.one');
                });

In Route.php line 917:
  Unable to prepare route [en/dashboard/constructor/section/{section}] for serialization. Uses Closure.
Script php artisan optimize handling the post-update-cmd event returned with error code 1