Knights Reborn

So i recently got ja++ and it's a cool mod i clicked on a skin and my client crashed i reloaded the mod it was working but now when i go on the server it freezes and a message says it's stopped working could you help me please?

JA++ has a bunch of features that could clog up your PC. This happens to me all the time. If it constantly crashes your PC I recommend dropping JA++ and instead going with JA+. Other than that, I am not sure.

thanks