Tekkit Probleme

Bonjour à tous, je viens poster ce message en raison d'un problème je m'explique :
J'ai décidé d'installer Tekkit Lite 1.4.7 sur mon serveur.
Tout marche trés bien sauf que quand je veux prendre un objet sa marche pas et sa me met un truc du genre "There no such as item with ID".
Voici mes logs :
2013-06-08 13:58:55 [INFO] Starting minecraft server version 1.4.7
2013-06-08 13:58:55 [INFO] Loading properties
2013-06-08 13:58:55 [INFO] Default game type: SURVIVAL
2013-06-08 13:58:55 [INFO] Generating keypair
2013-06-08 13:58:55 [INFO] Starting Minecraft server on 0.0.0.0:27390
2013-06-08 13:58:55 [WARNING] **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
2013-06-08 13:58:55 [WARNING] The server will make no attempt to authenticate usernames. Beware.
2013-06-08 13:58:55 [WARNING] While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.
2013-06-08 13:58:55 [WARNING] To change this, set "online-mode" to "true" in the server.properties file.
2013-06-08 13:58:55 [INFO] Preparing level "world"
2013-06-08 13:58:55 [INFO] Preparing start region for level 0
2013-06-08 13:58:56 [INFO] Preparing spawn area: 78%
2013-06-08 13:58:57 [INFO] Done (1,568s)! For help, type "help" or "?"
2013-06-08 13:58:57 [INFO] Starting GS4 status listener
2013-06-08 13:58:57 [INFO] Query running on 0.0.0.0:27395
2013-06-08 13:59:02 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?

Merci d'une aide.