Crash help

[Guthatron]

Hey guys, looking for some help as I dont understand these crash reports much.
Server crashed 3 times today within a few hours. The first time I wasnt online and a staff member rebooted.Then it crashed, I rebooted and it crashed straight away. It hasn't happened again since, but the last one was only an hour ago
Each crash report is the same. here they are:

1.55PM: http://pastebin.com/xhvLScfR
3.44PM: http://pastebin.com/bJQFVHwd
3.498PM: http://pastebin.com/kUnPy7KR

 

[cjm721]

Well its saying some mod is accessing a client side only function. From quick look at your mod list I suggest removing the NEI plugins as 90% of it is client side only.