Previously there was an issue with the asset setting of the DOGE market, and deposits into that wallet have been deprecated. Users must use the XDOGE wallet (it is indeed the genuine DOGE asset). It displays without the altered coin ticker which will allow generating a new wallet address.
In short - use the wallet that allows both deposit and withdrawal.
Observe the market with the updated ticker here:
The previous wallet provides withdrawal only (deposit is permanently disabled).