A blank page in Laravel can be caused by several issues. Here are some common causes and solutions:
1. Debug Mode: By default, Laravel's debug mode is turned off. When it's off, Laravel doesn't show detailed error messages, just a blank page. To enable debug mode, set APP_DEBUG=true in your .env file.
2. Incorrect Routes or Controllers: An incorrect route or controller that isn't returning a view can cause a blank page. Double-check your routes and controllers to ensure they are correctly configured.
3. File Permissions: Incorrect file permissions can prevent Laravel from writing to necessary directories, such as storage and boostrap/cache. Ensure the permissions are set correctly.
If it caused by cache issues then
php artisan cache:clear php artisan config:cache php artisan route:cache php artisan view:clear
If it's due to composer issues ie. outdated class files then run
composer dump-autoload
You might want to do optimise to see whether the routes correct or no.
php artisan optimize
Usually when error occured, it will give something like this :
Execution /opt/plesk/php/8.2/bin/php has failed with exit code 1, stdout:
INFO Caching the framework bootstrap files.
config ........................................................... 25ms DONE
routes ........................................................... 26ms FAIL
In AbstractRouteCollection.php line 247:
Unable to prepare route [login] for serialization. Another route has already
been assigned name [login]. This means the route [login] has a conflict and need to be fixed.