[3.0.3/3.0.4] Cannot use Tekkit mod items in server 3.0.4

[robert]

Title: Cannot use Tekkit mod items in server 3.0.4

Version: 3.0.3/3.0.4

OS: windows 7

Java Version: 6

Description of Problem:

Cannot use Tekkit mod items in server 3.0.4

Error Messages:

Cant spawn stuff

Error Log:

2012-06-11 02:39:45 [sEVERE] java.lang.NullPointerException

2012-06-11 02:39:45 [sEVERE] at net.minecraft.server.ItemStack.setData(ItemStack.java:153)

2012-06-11 02:39:45 [sEVERE] at net.minecraft.server.ItemStack.<init>(ItemStack.java:39)

2012-06-11 02:39:45 [sEVERE] at net.minecraft.server.Packet.b(Packet.java:160)

2012-06-11 02:39:45 [sEVERE] at net.minecraft.server.Packet107SetCreativeSlot.a(SourceFile:25)

2012-06-11 02:39:45 [sEVERE] at net.minecraft.server.Packet.a(Packet.java:83)

2012-06-11 02:39:45 [sEVERE] at net.minecraft.server.NetworkManager.h(NetworkManager.java:152)

2012-06-11 02:39:45 [sEVERE] at net.minecraft.server.NetworkManager.c(NetworkManager.java:273)

2012-06-11 02:39:45 [sEVERE] at net.minecraft.server.NetworkReaderThread.run(SourceFile:76)

[Torezu]

Did you use /reload at all? That breaks crafting/spawning mod items.