Fatal error: Uncaught Error: Class "Spatie\Crawler\CrawlObservers\CrawlObserver" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\spatie\laravel-sitemap\src\Crawler\Observer.php:10 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\spatie\laravel-sitemap\src\Crawler\Observer.php on line 10