Mining Pool Hub Notice
Pool had some problem and did not work well for about 8 hours.
(It did not affect ethereum/ethereum-classic server and Siacoin)
Normally, pool automatically recover from failure state but it did not run as expected this time.
I investigated the issue and fixed potential problem, tested all logic again.
I will set affected pool's fee as 0% for a week
Sorry for inconvenience.
I believe this issue will not happen again.