I have come to the conclusion that whatever is going on is client side, which means I am missing a program or have the wrong version of a program. I have noticed that this problem of Flans stuff crashing me has been going on ever since I deleted Minecraft and reinstalled. Before I reinstalled Minecraft, everything was going well and all content packs worked for me. Because of this, I had to not only reinstall Minecraft but get Java and Forge back. I believe that there is a Java or a Forge version that I have that is not compatible with Flans. So, spicy, I am sorry to ask and please forgive me, but could you tell me A) The exact version of Forge you have, and What Java version you have and JRE (Java Runtime Enviroment) you have.