Popular cryptocurrency exchange, Cryptopia is facing myriad complaints after suspending trading activity due to server overload. The exchange, which is based on New Zealand suspended trading in two of its base markets, DOGE and LTC as its servers were unable to handle number of trades occurring. The exchange hit 500,000 users on 1st of December 2017 and by 31st December, it had hit 1,000,000 users. Registrations on Cryptopia have been paused to upgrade the resources to handle such massive traffic. The company had mere 30,000 users an year back.