Error in deploying laravel project to shared server

I've a laravel project and I want to upload it to hostgator shared hosting server. I'm cloning the project in root directory and placing the public content in a folder in public_html.

I've updated the confiuration -

require DIR . '/../../folder-name/bootstrap/autoload.php'; $app = require_once DIR . '/../../folder-name/bootstrap/app.php';

but I'm getting 500 Internal Server Error.

Need expert advice.