ho provato anche ad installarlo da composer:
codice:
{
  "require": {
    "firebase/php-jwt": "v6.10.1",
    "illuminate/database": "^v11.9",
    "laravel/serializable-closure": "v1.3.4"
  },
  "autoload": {
    "psr-4": {
      "models\\": "../models",
      "database\\": "./database",
      "config\\": "./config",
      "helpers\\": "./helpers"
    }
  }
}