Fatal error: Class 'Illuminate\Support\Manager' not found in /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Auth/AuthManager.php on line 5

Call Stack:
    0.0005     248208   1. {main}() /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Auth/AuthManager.php:0