Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Support\Htmlable" not found in /var/www/html/booking/vendor/laravel/framework/src/Illuminate/Support/HtmlString.php:7 Stack trace: #0 {main} thrown in /var/www/html/booking/vendor/laravel/framework/src/Illuminate/Support/HtmlString.php on line 7