Our ZET wallet is currently in maintenance while we investigate. We cannot give you a certain ETA on when this maintenance will be complete, but you can check its status on the CoinInfo page which this direct link will take you to:
When a wallet is in maintenance, you’ll be unable to create an address, no new deposits will come in, and you won’t be able to trade or withdraw this coin. Please rest assured though, all transactions will proceed as normal once this status is lifted, including any backlogged transactions.