Server won't start with sponge installed

I would love some help as i’m trying to get my mudpacks server up and running but whenever I install sponge forge the server freezes on start up: [TreeTypeAdapter.class:?]13.01 19:27:11 [Server] INFO at com.google.gson.Gson. - Pastebin.com
It does not leave a crash report and I need this to function, thank you.

Can you upload your full server log?