i see some chat on telegram group that some members got same experience with you maybe livecoin still under maintenance, to get official answer you should contact them via email or twitter maybe you will get the answer asap but i see on their tweet if their site still under maintenance
https://twitter.com/livecoin_net/status/877769490628575232 but they say that only 40-50 minutes, i think livecoin is not under maintenance again for now