Basically if you just using the gui wallet, this shouldn't be a problem. Just if you (for some reason) connect to the wallet with RPC over the Internet (using SSL) a attacker could steal the RPC login and then steal the coins. (You can connect to a running wallet trough RPC and control it). I think at the moment this dont affects Germanycoin much, but better be completely safe

Read more here :
https://bitcoin.org/en/alert/2014-04-11-heartbleedIt's for Bitcoin, but its the same problem.