Both of my miners (ETH), about 1-2 hours ago, stopped appearing in the MPH Dashboard.

So i've logged in to check them out and both they were getting this error in CMD:

ETH: Received error: {"id":11,"result":null,"error":[23,"lowdifficultyshareof2"]}

but also they kept on digging.

Can someone inform us, if the pool is having any issues today Thanks!