Have you not read the statement on bitconnect.co ?
It was an exploit that some members were using to double their coins. They have suspended the platform until they manually go through all accounts. It was not hacked. Will be back online 27th
Has BCC given a reason for the site not working other than unscheduled maintenance?? Honestly, I'm surprised this coin hasn't tanked WAY more than what it has, given the circumstances.