I don't know what is causing that but you can still claim Our server balance is over 5 btc will check soon the problem

Welcome Guys, we are proud to announce that we are launching the highest paying faucet. Our current rates are as follow every 30 minutes.
550 satoshis
650 satoshis
850 satoshis
950 satoshis
1,050 satoshis
1,150 satoshis
1,250 satoshis
1,350 satoshis

We will be usually funding the faucet by ad revenues and will make it more interesting. We are working on making the payments automatic it is currently a problem all of the payments are sent manually. We have placed a higher withdraw limit so that we can keep up with manual withdraw in the mean time I hope you will enjoy the faucet There is also a 15% referral commission.

http://freebtc.us.to/