But interesting other thing - pool find only 2 blocks for all of his history and says they are orphan.
If you see this blocks on block explorer, they are NOT orphan.
So, i think, pool trying to scam miners, says they found orphan blocks and here is no rewards for this.
Could be an orphan, happens all the time, especially with the smaller pools running on cheap hardware and/or not properly configured. The pool says the block was found on 1/29/2018, at 6:52:34 AM, and the official block explorer shows this block as found on 1/29/2018, at 6:52:31 AM. So you were probably a little bit late. The pool seems to be located in the US and you don't sound like you're from US
so maybe the network latency played its role there as well (I've just tried to ping their server and it's ~ 250 ms from my location, I wouldn't personally mine on a server located that far). It sucks to mine an orphan, but not necessarily the pool's fault in this case.
