If you go to Cryptopia coin page on
https://www.cryptopia.co.nz/CoinInfo/ and type HYPER, you will see that by the time being, there are 0 connections, so presumably, they have turned off the wallet.
The ticket you have already sent seems to be the best option.
Got a quick reply back from Cryptopia. They fixed the wallet and cleared the issue up. Everything worked fine. Sent the HYPER to the exchange address and submitted the form with the required details.