Can someone read this crash report for me?

Im playing Voltz with my friends and i can play for a couple minutes, then i crash and every time i try and come i come back on, i crash within seconds. I got the latest java and have 2 gigs RAM on my minecraft with setting on low. I dont want to stop playing and i dont want to uninstall voltz. Here is the crash log:

---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 4/24/14 5:22 PM
Description: Rendering entity in world

java.lang.ExceptionInInitializerError
at net.machinemuse.utils.render.Render$$ano…
at net.machinemuse.utils.render.Render$$ano…
at net.machinemuse.utils.render.Render$$ano…
at net.machinemuse.utils.render.Render$$ano…
at net.machinemuse.utils.render.Render$$ano…
at net.machinemuse.utils.render.Render$$ano…
at net.machinemuse.utils.render.Render$$ano…
at net.machinemuse.utils.render.Render$$ano…
at net.machinemuse.powersuits.client.render…
at net.machinemuse.powersuits.client.render…
at scala.Option.map(Option.scala:145)
at net.machinemuse.powersuits.client.render…

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