I've lost a lot of coins there as well.
Cryptorush was an important exchange, but the owners closed it down and took all the coins.
Actually there is a lot of misinformation out there. The previous owners did not have good security set up. They were hacked for a significant amount of coins. Then there was a few coins that hard forked with no warning and created a bug for people to withdraw more coins then they actually had. All of this added up to around 1200BTC worth of coins lost. Then the owners said were talking to someone to take over and buy a portion of the exchange. They made the mistake of giving him access to the CRS account which he ended up taking it saying he was going to use arbitrage to make a profit t return to customers. He never came back and there was not formal contract signed so a lot of people think he is the owner but never was and he was but this is where people thing the owner took the money and ran. Now for the actual new team that has taken over. There are actual professionals that know what they are doing the former owners where in over their head. They tried to have the site run normally so people could get out via an ALT coin even though it would be for a premium. This premium was not the exchange hiking prices it was other users. Then there was a back door found servers and more coins where being taken. This is where the new team finally said enough is enough. There where too many flaws in the old system. So they are building it from scratch on new servers. This is basically a new company being created but they have to go though 35k users and all the balances to figure out if you should have what you have. The sad part is all of the wallets that were insolvent will be frozen and it may take a long time to get those funds back. The new team is made up of people that that where users there and said there are 2 options the old owners go bankrupt and everyone gets nothing. Or the new operation team takes over and tries to make the exchange work properly and eventually pay everyone back. Neither are idle but the second what is a better option. This is why I have been volunteering along with many other members. We wants to helps others get there coins back and we want ours back too.