https://novaexchange.com/market/BTC_SLM – page not found. And withdrawal is still disabled. Emailed their support, waiting for the answer.

Upd: They've just posted an announcement: "SLM - SlimCoin markets have been paused for a while. We are fixing some issues with the wallet, and we will soon open the BTC markets again. Apologies for the inconvenience!".