RukoSanada

The same thing does indeed happen if I run the server on a different pc/host. Updated Chaos Craft, however the problem still persisted.

Yeah, I figured as much even when increasing the ram setting the problem still persisted, after a while of playing the following things sometimes happen, if someone leaves the server the other player's game closes completely no error, if someone joins while there's another player on the server, fatal error happens for both members. Do I need to increase ram usage more or is this a different problem that we're over looking?

The thing is we can connect to the server just fine and such, but after a while of playing it seems like it doesn't want more than one person on the server cause it gives a Fatal error. But I'll check the ram setting see if there's any difference

Bump. Very well I've fixed the Modpack download I apologize for the simple mistake. http://api.technicpack.net/modpack/ruko-land

Already based on what you said, I fixed up our modpack folders accordingly, and obtained the proper forge jar as well as removing the server.dat and options.txt I see what you mean this modpack folder is a complete mess. I've just finished uploading the server package, which includes the worlds we use so that you may have a better chance in locating the issue. https://www.dropbox.com/s/wvmy78ty6ucktqb/server.zip?dl=0