Destruction Catalyst -> Server Crash -> Restart -> Users join and instantly get kicked

[TheSAgibbs]

The sequence of events is in the title. A kid used the destruction catalyst causing the server to crash then when anyone joins, the console throws the following message before booting the player... I (hosting the server on my computer) can get on the server and play just fine. Hence why I don't know what to play with in the configs.

Here's the error the console throws when a player joins. (iRaZeTiiGeRzZv1 is the player who tried to join.)

18:28:51 [iNFO] Sending serverside check to: iRaZeTiiGeRzZv1

2012-07-30 18:28:52 [WARNING] Failed to handle packet: java.lang.IllegalArgumentException: Can't create an EntityItem for a null item

java.lang.IllegalArgumentException: Can't create an EntityItem for a null item

at net.minecraft.server.EntityItem.<init>(EntityItem.java:29)

at ee.core.PickupHandler.onItemPickup(PickupHandler.java:29)

at forge.ForgeHooks.onItemPickup(ForgeHooks.java:165)

at net.minecraft.server.EntityItem.a_(EntityItem.java:166)

at net.minecraft.server.EntityHuman.l(EntityHuman.java:363)

at net.minecraft.server.EntityHuman.e(EntityHuman.java:355)

at net.minecraft.server.EntityLiving.F_(EntityLiving.java:447)

at net.minecraft.server.EntityHuman.F_(EntityHuman.java:168)

at net.minecraft.server.EntityPlayer.a(EntityPlayer.java:233)

at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:375)

at net.minecraft.server.Packet10Flying.handle(SourceFile:126)

at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)

at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:121)

at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:556)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2012-07-30 18:28:52 [iNFO] [MCBans] iRaZeTiiGeRzZv1 has disconnected!

[TheSAgibbs]

Nevermind, it seems while I was posting that, the problem fixed itself. The server's done this twice now all with the destruction catalyst issue.

Okay, now my question is, how can I prevent this happening in future? My server is slowly growing and it's a pain in the neck.

[warpspeed10]

I would recommend disabling the tools of power for default users, yet allowing your moderators and admins to use all the EE tools. They help greatly when your staff is building impressive structures to better the server. The problem is they can be easily abused. This is why you give them to people you trust, i.e. your staff. It's a nice thing to do for your mods if you want to reserve world edit privileges for your admins only.

I'm making this post assuming you have a standard survival tekkit server. If however, you have a hardcore pvp/ anarchy server, you can disregard this message. Giant crators and ravaged landscapes are what give those kind of servers character.

[TheSAgibbs]

Okay, but how would I blacklist the items, is what I was asking?