Why can't I run laravel project?

Question

Laravel

Hello, I have a laravel/react project.
Link to github
Windows 10. Locally. Installed the latest php on this guide on drive C, plus installed composer in the folder with php7, created a variable. I downloaded the project, ran composer install in its folder, then npm install, then php artisan serve, then npm run watch (all commands ran without errors)
As a result, 500 error.
What could be the problem?
Thank you.

Answer 1

Is the 500 Laravel error or not? What's in the logs? Look at storage/logs, look at PHP logs.