I've checked some logs, the problem on pool side, pool sends different epochs for some reason. You can ask their support why it happens.
Any update for Windows 7 users using blockchain drivers that face issue of miner crashing as soon as it detects the cards ?
I cannot install these drivers on Windows7 at all, now I have to reinstall Windows after several attempts. Try any different OpenCL miner to confirm that the issue is related to my miner, because the reason can be drivers.