Everytime i open the DW20 modpack on curse voice it seems to crash, i have a crash report at http://pastebin.com/EhMU5peJ please help since i was very excited to get started with EE3, my twitter is BeastOTL if you need to contact me. Thanks in advance.

When you disable EE3 does the game still crushes?

They are using a version of EE3 for Minecraft 1.5. Its a known bug with the Curse launcher. Go to the Versions tab and grab 0.3.507. Please see similiarly closed duplicate issues.