Transfering from wallet to ERC20 paused

After one month mining I want to transer my NKNs from the official wallet to an exchange.
I understand that I have to swap to NKN ERC20 tokens through
but right now that option is “Paused”

Is that usual? will take long? Are there other methods?
I also wonder what will be the costs of the move.

Token swap schedules are here:

In addition, Upbit supports Mainnet NKN tokens.