Which version of miners (v1 or v2) do you use and when did you install it? Did the above issue occur with the publisher's certificate?
Version 2, just about a month ago.
AFAIK, there are other PoC coins which look more interesting, for me at least.
Will you give some examples please?
Sorry, my mistake. I didn't mean PoC specifically (like Burstcoin), but mining with hard drive. Examples are DENET, StorJ and Filecoin.
But I don't know if they're sh!tcoins, so do your own research. For example, I think StorJ is already not profitable anymore, like MASS.
I for my part am curious about the DENET launch this month.