Look here https://www.cryptopia.co.nz/News into the tweets on the right side. The ones regarding the LTC/DOGE market problems. At the moment it doesnt seem to be solved in a fast way.

In theory you can try https://c-patex.com/ This is a new exchange and i think they will build up, but only future will show, if it is an honest meant exchange or just another try to scam ppl. For now i just can say, they try to do honest work, try to enhance their service and until now they answered any ticket i opened in a relative fast way. But just keep in mind - it could be a scam too...