Fatal error: Interface 'Illuminate\Config\LoaderInterface' not found in /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Config/FileLoader.php on line 5

Call Stack:
    0.0004     261304   1. {main}() /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Config/FileLoader.php:0