Fatal error: Uncaught Error: Class "Spatie\LaravelPackageTools\PackageServiceProvider" not found in /var/www/html/vendor/spatie/laravel-sitemap/src/SitemapServiceProvider.php:9 Stack trace: #0 {main} thrown in /var/www/html/vendor/spatie/laravel-sitemap/src/SitemapServiceProvider.php on line 9