Pterodactyl-Panel/config/pterodactyl.php

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Service Author
    |--------------------------------------------------------------------------
    |
    | Each panel installation is assigned a unique UUID to identify the
    | author of custom services, and make upgrades easier by identifying
    | standard Pterodactyl shipped services.
    */
   'service' => [
       'core' => 'ptrdctyl-v040-11e6-8b77-86f30ca893d3',
       'author' => env('SERVICE_AUTHOR'),
   ],

];