Tekkit classic issue, Im stumped

[f575gtc]

I am trying to start up a Tekkit classic server for a few friends, and I am getting stuck at a certain part.  I can get the server running, and access the world, log in etc. perfectly fine, but the second I try to use an item associated with Tekkit classic I get an error "internal exception java.net.socketexception connection reset,"  it only happens when I access Tekkit items, any other items belonging to minecraft work fine.  I don't know what to do.  When one of my friends try to craft a tekkit item, it instantly vanishes once they try to drag it into their inventory.  I can't be an internet connection issue,  it has to be something with the server, but I don't know what it is.  I already copied all the mods from the Tekkit Classic client over to the mods folder of my server, and it hasn't fixed the issue.

 

Anyone ever have this issue?