My standalone app has stopped working

If your standalone application no longer works after you have made an update/upgrade or for other reasons, you could try to do the following:

Caching Configuration

php artisan config:cache

Caching Routes

php artisan route:cache

Clear views

php artisan view:clear

Clear cache data

php artisan cache:clear

Terminate Horizon

php artisan horizon:terminate

I will be restarted by your process monitor and receive your code changes