Minecraft Forge Server crash

[Rosario]

I downloaded "FTB Infinity" Modpack and in my single world works all correctly but wenn i make a Server it comes this:

http://pastebin.com/XmGJy1YP

Edited February 4, 2017 by Rosario

[LexManos]

1) 1.7.10 is not actively supported on this forums, you should update, if you can't. You can.

2) The mod pack is broken, talk to the authors, one of the mods is trying to access client side code.