There is a problem with their servers and routing addresses as pinging the host will give you the following error message.
Pinging torrentb.com [62.213.100.50] with 32 bytes of data:
Reply from 212.24.42.129: TTL expired in transit.
Reply from 212.24.42.129: TTL expired in transit.
Reply from 212.24.42.129: TTL expired in transit.
There is nothing you can do about it, unfortunately. You just have to wait until the developers fix this issue.