Why is the public folder in Laravel giving a 500 Internal Server Error?

Question

Laravel

With the command "laravel new project" I created a project.
Launched OpenServer and when I try to follow the project/public link, the following error occurs:
Page not available
The project site cannot process this request yet.
HTTP ERROR 500
Entered the following commands:
php artisan key:generate,
php artisan cache:clear,
php artisan config:clear,
composer dump-autoload,
php artisan route:clear,
php artisan view:clear,
php artisan config:cache,
restarted the server but none of the above helped.