Hello Admin,
We are not very good at speaking Chinese but need your help please! The software you are using in your darkcoin wallet and stratum are outdated! This is a link to the statum software:
https://github.com/darkcoinproject/darkcoin-stratum. Here is the developer eduffield speaking on this issue:
https://bitcointalk.org/index.php?topic=421615.msg7681984#msg7681984. In this link you can see that you are one of the last to pools to update, but also one of the biggest pools
http://drk.poolhash.org/graph.html, so it is a bit of a problem. Soon all blocks found by you will be orphaned if you do not update, please update! Thank you very much, please contact me if this english can't be understood.