Yea I was thinking the same thing.  Came here to check.  The HBN/Doge market is down too, but a bunch of DOGE pairs are down.  Doge has gone - well Doge does what Doge does.

Cryptopia does have a lot (20 or more?) of coins in Maintenance right now, even some larger ones like OMG.  They are showing 15 connections, and my wallet looks good too.  So hopefully its just Cryptopia doing maintenance and nothing more.