Some coins with block times that are relatively short and with high network hashrate (compared to your pool hashrate) may give you a lot of orphaned blocks.
I have no idea if that's the case with your coin and your pool. BTW, what coin are you mining?
Edit: I just noticed that you wrote LCC. Is it Litecoin Cash? It has a relatively small block time of 2.5 minutes, but I have no idea about the total hashrate.
yep, it's litecoin cash (lcc), my pool hashrate ~ 250TH, nethash is about 21PH