Server crashing all the time

My server keeps crashing, I don't know why. My first guess was to big map. But it's only 60 MB big...

Could anyone please take a look at this log? I have players waiting :/

 

Enlarge the memory usage Bukkit can use. I suggest at least 1GB.

 

I got it set on 2GB?

 

How many plugins are you using then?

Make sure that your server doesn't have any InfiniteChests with AIR (ID: 0) inside of them.

And according to your server log, everything seems fine! There's not errors, NOTHING.

Code:

2011-12-21 21:23:01 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?

This is a harmless error that usually means that you have too much CPU being used.
Don't run Minecraft on your host computer...

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

I don't run minecraft on the host comp. I don't run anything on there. Well, the server ofc, but not anything else.

 

I think the server just likes to be off-line, because then it has some time for itself.
And you know what servers do, when they have time for themselves! (If you don't, you don't want to know.)

 

GET THE TROLL!

 

Turn spout data caching off

 

I erased my own playerfile and now it seems to work..... Got a clue of what that could be?