Direwolf20_1_5 is Stuck/frozen while loading. NEED HELP

[Nucular wolf]

My direwolf20 modpack is stuck on the Mojang screen while loading.
Heres the link to the log: http://pastebin.com/UpfGpD4t
Can anyone help?

 

[UniZero]

Known error see here.

 

[Nucular wolf]

Known error see here.

so what do i do?

 

[UniZero]

so what do i do?

I would either wait or roll back to a previous version.

Edit: Look here for possible fix. Reply #5.