Open GPS Tracking System

Hi guys, I really need your help! Is my second installation attempt of OpenGTS 2.3.6 and I can't make it work (first on debian, now on centos). I must say that I have no experience in this matter, nor in java. I always end up with this logs: [root@gps OpenGTS]# tail -n0 -f /opt/OpenGTS/logs/tk10x.log [INFO_|02/06 11:01:27|ServerSocketThread$ServerSessionThread.run:1392] Remote client port: /213.233.103.22:60207[31272] [INFO_|02/06 11:01:27|AbstractClientPacketHandler.printSessionStart:165] Begin TCP communication: 213.233.103.xx [INFO_|02/06 11:01:28|TrackClientPacketHandler.getHandlePacket:114] Receive: ##,imei:863070011989xxx,A [INFO_|02/06 11:01:28|TrackClientPacketHandler.getHandlePacket:119] TK103 Header: ##,imei:863070011989xxx,A [INFO_|02/06 11:02:14|TrackClientPacketHandler.getHandlePacket:114] Receive: 863070011989xxx [INFO_|02/06 11:02:14|TrackClientPacketHandler.parseInsertRecord_TK102:341] Parsing(TK102): 863070011989xxx [WARN_|02/06 11:02:14|TrackClientPacketHandler.parseInsertRecord_TK102:351] <b>Invalid number of fields</b> [INFO_|02/06 11:03:14|ServerSocketThread$ServerSessionThread.run:1527] <b>Read timeout [empty packet]</b> [INFO_|02/06 11:03:14|ServerSocketThread$ServerSessionThread.run:1553] <b>End of session ..</b> The device is from China, tk103. I did all the steps in the manual. Can anyone tell me what should I check or do? Thank you. Marius Gologan.