I can not pick up items in voltz modpack in my server

[gustavoma12]

I can not get the items of the modpack in my server, use the voltz modpack, tested in other modpacks with their related servers, unfortunately the error remains, if alquem know how to correct and could help me, I would thank, I await answers .. .. (I apologize for the spelling errors because I'm Brazilian and do not speak fluent English beg forgiveness).

Edited June 22, 2014 by gustavoma12

[plowmanplow]

You are probably starting the minecraft_server.jar instead of the Voltz.jar.