The mcpe client can't connect to the world.And then I try to telnet to the service port 19132.But the telnet show "Disconnected by foreign host." My system version:Ubuntu 17.04 i386 MCPE Service versionocketMine-MP 1.6.2dev-76 「Unleashed」 implementing API version 3.0.0-ALPHA5 for Minecraft: PE v1.0.7.0 (protocol version 07) I need your help. Thank you very much.