Towelroot questions once again.

Okay hi everyone, I literally just joined the forum, and I have questions about towelroot. I tried to use it a few minutes ago on my Samsung Galaxy A3, and it had the message "phone not supported". So I used the method where you input the specific code (the one for Galaxy devices) and when I pressed the "Make it ra1n" button, it went orange, and the app did nothing after that. Nothing more happened, no failed or succeeded message at all. Is there a way to fix this? Even if it is the temporary root, I can work with that, I'd just like to know why it won't respond and if there is a way to fix this particular problem. Thanks in advance.

~Panda