Recently I have been working on making a server (hosted on my machine with Hamachi) for the pack "Magic World 2" by FTB (1.6.4 modpack). I have added a few mods to it, though. At first, I had issues concerning RAM allocation, however I sorted those out with a Java Runtime Environment update.
However, my problems start here. After removing mods that didn't work within the modpack, I launched the StartServer.bat file, and everything works fine, until this line appears;