I think (2nd attempt) at getting it on Yobit is priority. It's quite a popular exchange and works very well.
They replied me some time ago:
Dear User!
Support answer:
CasinoCoin has problems with rpc.
Market is off now.
Date: 08.02.2016 18:05
I asked them if the need any help, but no response.
Hmm it'd be nice if they responded with what they actually found wrong with our RPC since I haven't had any noticeable problems.
Casinocoin is coming up on our 3 year anniversary, any ideas of something we could do to celebrate?
Possibly the creation of a "organization/foundation" that will have many participants/admins so there is no one point of failure.
http://www.timeanddate.com/countdown/to?p0=1440&year=2016&month=7&day=17&hour=0&min=0&sec=0