I have put a new on the pool :

Worldcoin has been attacked and require an update to 6.4.6 resulting in a rollback of something like 2K blocks.
These blocks where already paid and so resulting in a hole of almost 30K in the pool. I have rolledback all the reward given for the blocks removed from the chain.
Some miners who requested a withdraw during the attack may not have received they coin but there balance has been reduced. Please contact me via bitcointalk, I will recredit your pool account of the amount due.
Please provide your user id and a copy past of the transaction that you can find here : http://wdc.theblocksfactory.com/accounttransactions

I will be disconnected for about 12 hours