same here i fixed this problem with downgrading dynamic surroundings to 3.5.4.3.jar
also remenber, when you get errors while loading mods,
try these
look into crash or error log and find whats wrong
use diffrent version of mod or forge that caused errors or crash (i recommend download most downloaded version of mod)
if you are not able to find what mods caused a error try installing mods one by one