Windows .exe DW20 1.6.4 Crash

[tehsnook]

Pastebin of the crash here - http://pastebin.com/NiZjKbXx

Randomly, after no changes my game crashes. One day i'm playing it fine, the next I tried to open my world and I instantly crash.

 

[MinMax123]

Same thing happened to me D:

 

[Jay Mathyson]

DW20 mod pack requires custom java command line options to run smoothly; I had the same issue until I put in the options.
On the FTB Launcher, click Options icon, then Advanced Options and change the Additional Java Parameters to read:

-Xms2048m -XXermSize=256m -XX:NewRatio=3 -XX:SurvivorRatio=3 -XX:TargetSurvivorRatio=80 -XX:MaxTenuringThreshold=8 -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:MaxGCPauseMillis=10 -XX:GCPauseIntervalMillis=50 -XX:MaxGCMinorPauseMillis=7 -XX:+ExplicitGCInvokesConcurrent -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=60 -XX:+BindGCTaskThreadsToCPUs -Xnoclassgc

 

[UniZero]

Pastebin of the crash here - http://pastebin.com/NiZjKbXx

Randomly, after no changes my game crashes. One day i'm playing it fine, the next I tried to open my world and I instantly crash.

Try removing the enderstorage mod then try to load the world. If it loads without the mod re-add it and try again. If it does not work then delete the enderstorage folder from your save folder.