New server version has been released for the purpose of fixing some railcraft and mcmmo related bugs.

Instalation guide:

Download this


Extract all the files to a folder that will be later deleted.

Go to .minecraft (type %appdata% in your explorer, and go into the roaming folder)

Go into the mods folder and erase all buildcraft and railcraft zip files

Startup your mod_pack_installer (one of the extracted files)

Select buildcraft-2.2.14 june.pack

Click install
Wait for the instalation to finish

Connect to the server