In Cryptopia I see:
Market Paused
16/03/18 - In maintenance at the request of the Developers while network issues are resolved.
WTF ?
Forever with this exchange something is wrong!

Why do you blame exchange if it's done "at the request of the Developers"?
Yes indeed. Was wrong!

Then the question is to the developers, when will it all work as before? Something has been going on for a long time already!