Here's the latest from StocksExchange from their twitter feed. You may encounter some problems trading ITNS.

https://twitter.com/StocksExchangeR/status/951380251560603649

Next pairs are stoped due to the technical works:
BBC/BTC
TRDC/BTC
ITNS/BTC
ITNS/ETH
BCN/BTC
BCN/ETH
We will come back soon!
1:08 AM - 11 Jan 2018