FuLagann

Title: Non-Vanilla items crash game on a server Version: 3.1.2 OS: Windows 7 Java Version: Java 7u6 Description of Problem: When I start up the server everything is fine, all the items pop out. But when I click on a non-vanilla item, it will either crash me (if I got it from creative mode and put it into my inventory) or tell me the item number does not exist (if I got it from the too many items mod). What can I do to make it so I can use these items on a server? Error Messages: End of Stream Error Log: