I am also getting this red alert of "Currency operations not available" when trying to move 1 ETH from the Trading Account to the Main Account so that I can do a Withdraw... I have just started using HitBTC, but this is frustrating... it seems that waiting is the only answer. I will try tomorrow again.
This sometimes happens in hitbtc exchange. Just wait for the technical team to fix it, until they fix, you can't move your funds between main account and trading account. You also may not be able to withdraw them into your personal wallet too.