I also installed hodlcoin wallet a while ago, processed all the data and even did some mining for several days.
Then the wallet was not syncing. I had mining opened for several days and I think because Hodlcoin is not so popular, that should bring something.
But now the wallet is just not syncing.
So that's probably dead coin?
But it's still listed on Coinmarketcap.
I discovered this coin because of funny name, and interesting conception of giving good interest for Hodling..
But if it's dead -that's sad.