Such problems usually occur as a result of a slow internet connection on your device, firewalls, adblockers or a massive number of participants sending requests simultaneously.
We would advise you to try again in one or two hours.
Meanwhile, you can also try StormGain’s Miner for PC and laptop.
Simply open StormGain on your desktop computer and launch the Miner there.
In case the problem persists, contact StormGain’s Support Team again.