Guys, what mean "incorrectly calculated shares" in solo(not pool) mining. Looks like ( 0/0/1(0.00%)) in EthMan stats.
 I'm mining solo almost a week already. First few days all was good 2-3 blocks per day. 3 last days was very unlack.
  I still got same 2-3 shares but almost all of them is looks like 0/0/1 ("incorrectly calculated shares" as says EthMan help)
Is this type of shares is normal situation, and I just have bad luck, or it is may be some hardware errors, or maybe some software(geth) issue?