I believe that means the wallet cannot connect to peers and therefore doesn't have access to the blockchain.
Some of the more obscure/abandoned coins do this as their original nodes have given up on the coin. You will want to find working nodes (peers) to connect to. I usually just do a Google search (eg. "bitbar addnode" or "doge addnode") which brings up posts where the coins are announced - and in those announcements you'll find the working nodes.
You can cut and paste the code into the wallets configuration file (eg. 42.conf for 42 coin, doge.conf for Doge, bitbar.conf for Bitbar) which looks like this (sample only):
listen=1
daemon=1
server=1
testnet=0
rpcuser=xx
rpcpassword=123
rpcport=5915
maxconnections=500
addnode=23.239.111.69
addnode=23.239.111.68
addnode=59.188.76.25
or go into the wallet -> help -> debug -> console
and type
addnode 23.239.111.69 add <press enter>
addnode 23.239.111.68 add <press enter>
etc.
Both methods work whereas the first method saves you having to type in the addnode command every time you run the wallet. The conf file goes into the Appdata folder (C:\Users\PCNAME\AppData\Roaming\BitBar)
Note you'd change bitbar to whatever folder your wallet is saved in (42, litecoin, multibit, doge, etc.)
The nodes listed above as examples, each coin uses different nodes so don't expect the code I've given you to work. Look for mention of the ".conf" file in the announcement thread for your coin here on Bitcointalk.
