Yes LiteQuark is dead and it was a scam. They ripped it off and made an exact clone of BitQuark. If you want to mine a good quark coin you should mine BitQuark. We have a large community and we are on an exchange https://c-cex.com/?p=btq-btc BitQuark launched 4 years ago. You can mine it with 0% fees at http://www.WeMineBTQ.com