Recently I encountered an issue that is when I created a load balancer for a project and the project I created with Laravel Framework. I found a problem: when I am trying to submit the form it shows me:

419 | PAGE EXPIRED

Laravel by default keeps the session in the file, The reason I was getting the error. As I don’t have any sync enabled for my instances so it was failing to get the file. The easiest fix is to set the session_driver=file to session_driver=database in .env file and then run

php artisan session:table

php artisan migrate

Reference: Laravel 8.x

For the newer version of Laravel, it’s a bit different to create a session table:

php artisan make:session-table
 
php artisan migrate

Reference: Laravel 11.x

Once all of these are done you have to do this clear and cache the configuration

php artisan config:cache