Hello I wanted to play with this mod and always when I try to enter in a world my game crash and say this error for the moment I deleted the mod but I really want to play it :(
So any silution?

Just saying that you're getting a NullPointerException is no use to anybody. In future, you need to provide your full forge log file which should be found in the logs folder contained within your Minecraft install. If you're using a modpack on Twitch then that would be at Documents\Curse\Minecraft\Instances\ [Profile name] \logs\latest.log.

well, logs containing the stacktrace and error would be helpful
for the maintainers