there is something wrong with your faucet because I had typed the captcha and click 5 times "claim!" button
but i got this warning " Invalid captcha code! "
I too get the same error, the claim button seems fine, so it should be working.
<input type="submit" class="btn btn-primary btn-lg" value="Claim!">
yes and i have try it several times but had the same problem and i think OP must fix this
or he doesn't get the visitor from this faucet