Understanding the Error
When you run a Laravel app in development mode, it shows you detailed error messages whenever something goes wrong. These mistakes include stack traces, file paths, and debugging information that help developers find and fix problems quickly. But showing such detailed mistakes in a production environment can be very dangerous for security.
Visitors shouldn't be able to see technical error details in a production environment. The app should show a generic error page instead and log the real error internally. This keeps sensitive system information hidden from people who use the system.

