I think there was some sort of fork in Electroneum a few days ago. It could be that Cryptopia has not caught up with this, they may not have the new wallet.
https://github.com/electroneum/electroneum/releases/tag/v0.11.0.0-revert
Deposits on Cryptopia are disabled for a few weeks now. I don't know what is taking them so long, but they had some troubles with blockchain or something like that. They blocked deposits few times already...
Still waiting for my 4300 ETN from my last transaction made on 2018-03-03 still has not shown up on cryptopia sent from mining pool