Voltz 2.0.4 server not starting up

[TheUnclePorkchop]

My friends and I are trying to set up a Voltz server on 2.0.4, because the latest version won't launch for me, and when we launch the Launch.bat file, the command prompt says a lot of stuff you would expect it to, then "5 more", then just pauses and asks you to close it. I'll attach a picture to make it a little easier to understand, and deleting pause from the .bat code just breaks it haha... Not sure if these servers are just outdated and broken now or if it can be fixed, but any help would be great, cheers