Actually a guy called Boxmining on YT has done a video just a few weeks ago on the genesis mining farm, which means that they are probably still in operation and still mining. However i have definitely heard a lot of issues regarding the fact that they have delays in payouts.

Are you sure though that it's not either your contract being terminated by genesis mining becasue the payouts are less than the fees they charge, or just that your daily payout amount is less than dust amount?