I've been building a server for a while now (2-3 weeks) and have made some pretty good progress. I tried getting on again today to finish up some work on the spawn and Minecraft loaded, froze on the screen with the dirt in the background, and then sent me an error report (shown below). I ran my backup that had been saved the day before and it ran fine. So I tested to see if it had anything to do with some corrupt file so I moved my world folders (world, nether, and endworld) into the backup folder and tried running it that way and then got the same error as before. So it has something to do with the those files I presume. Please help!
P.S. I searched for this topic and couldn't find any good answers or related topics. Keep in mind this ONLY does this to my server. But I've never had this issue before.
---- Minecraft Crash Report ----
// I just don't know what went wrong
Time: 12/9/12 5:56 PM
Description: Ticking screen
at java.lang.System.arraycopy(Native Method)
at java.lang.Thread.run(Unknown Source)
I noticed it crashed my server when I tried to set off a firework without the fireworks star in the recipe. I see they fixed that issue in 1.4.7, but I'm using 1.4.6. Here's a link to the pastebin of my error code, for continuity and history.