Igaster Themes CLI

i'm using the "Igaster-themes" package on laravel 5.4, i create my first theme from CLI with

php artisan theme:create

And the first time works well, but when the assistant finished correctly i want create a second theme and execute again the same command but this error appear:

[Symfony\Component\Debug\Exception\FatalErrorException] Cannot use Igaster\LaravelTheme\Facades\Theme as Themes because the name is already in use

Some have any idea about what happen? Thanks in advance.

via Chebli Mohamed