Fatal error: Uncaught Error: Class 'Spatie\Crawler\CrawlObserver' not found in /var/www/dev/public/vendor/spatie/laravel-sitemap/src/Crawler/Observer.php:10 Stack trace: #0 {main} thrown in /var/www/dev/public/vendor/spatie/laravel-sitemap/src/Crawler/Observer.php on line 10