Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in /home/techguruuico/public_html/mailuai.com/vendor/mettle/sendportal-core/src/Providers/SendportalAppServiceProvider.php:23 Stack trace: #0 {main} thrown in /home/techguruuico/public_html/mailuai.com/vendor/mettle/sendportal-core/src/Providers/SendportalAppServiceProvider.php on line 23