I had a issues with my laravel app on vps so I needed to run a prototype as fast as possible on shared hosting.
I followed some tutorials on Youtube and laracasts but it still returns an http error
the root folder is /home1/username and I uploaded the project in /home1/username/zargold
Then I upload public folder files in /home1/username/public_html/domain/zargold/

as you can see I changed index.php file

require __DIR__.'/../vendor/autoload.php'; //default path
require __DIR__.'/../../../zargold/vendor/autoload.php'; // modified path
$app = require_once __DIR__.'/../bootstrap/app.php'; //default path
$app = require_once __DIR__.'/../../../zargold/bootstrap/app.php'; //modified path