root@bbb-web01-dev:/var/www/html/bbb-admin-portal-web# php artisan migrate
PHP Warning:  Module 'mongodb' already loaded in Unknown on line 0
Migrating: 2024_09_04_111417_moderator_department_permission_table

   ErrorException  : Trying to get property 'id' of non-object

  at /var/www/html/bbb-admin-portal-web/database/migrations/2024_09_04_111417_moderator_department_permission_table.php:20
    16|         $deptCat = DB::table('permission_category')->where('name','Department')->first();
    17|         $teacherRole = DB::table('roles')->where('name','Teacher')->where('guard_name','conferenceuser')->whereNull('created_by')->first();
    18|         
    19|         $data = [
  > 20|     		        ['category_id'=>$deptCat->id, 'role_id'=>$teacherRole->id]
    21| 			    ];
    22|     	
    23|         DB::table('role_has_category')->insert($data);
    24| 

  Exception trace:

  1   Illuminate\Foundation\Bootstrap\HandleExceptions::handleError("Trying to get property 'id' of non-object", "/var/www/html/bbb-admin-portal-web/database/migrations/2024_09_04_111417_moderator_department_permission_table.php", [Object(stdClass)])
      /var/www/html/bbb-admin-portal-web/database/migrations/2024_09_04_111417_moderator_department_permission_table.php:20

  2   ModeratorDepartmentPermissionTable::up()
      /var/www/html/bbb-admin-portal-web/vendor/laravel/framework/src/Illuminate/Database/Migrations/Migrator.php:392

  Please use the argument -v to see more details.

   Whoops\Exception\ErrorException  : Module 'mongodb' already loaded

  at Unknown:0
    1| 

  Exception trace:

  1   Whoops\Run::handleError("Module 'mongodb' already loaded", "Unknown")
      /var/www/html/bbb-admin-portal-web/vendor/filp/whoops/src/Whoops/Run.php:514

  2   Whoops\Run::handleShutdown()
      [internal]:0