Zcash + nanopool

Hi, I'm doing about 3000 sols with EWBF's CUDA Zcash miner on nanopool, now both balance and unconfirmed balance have been stuck for past 5 hours. I have restarted mining clients but nothing changes. Should I be worried or is it normal ?

I also have this problem sometimes where the mining client works and runs but doesn't share anything. it could be a OC porblem.
if nanpool doesn't report any sols then it's a mining client problem, but when nanopool does you should contact them,