I truly believe it is a java error as well. But I do not wanna say hey remove all your versions of java to see if it work just with java 8. Cause I know I personally do not like going to get older version to play the older versions of MC. And what I mean by that is like direwolf 1.6.4 or anything below that.
1.6 packs should work again, if they don't work it should be easy to fix. However I know that there is a problem with cofh with certain hardware where it refuses to load and that if you manage to get it to load you still can't play because the menu is missing together with some other things. I wouldn't be surprised if this is the same bug or related.
After I wrote the above I decided to look at the crash-log and I think I know what the problem is
at the bottom of the crash-log:
GL Caps: Using GL 1.3 multitexturing.
Not using framebuffer objects because OpenGL 1.4 is not supported, EXT_blend_func_separate is supported, OpenGL 3.0 is not supported, ARB_framebuffer_object is not supported, and EXT_framebuffer_object is not supported.
Anisotropic filtering is supported and maximum anisotropy is 4.
Shaders are not available because OpenGL 2.1 is not supported, ARB_shader_objects is not supported, ARB_vertex_shader is not supported, and ARB_fragment_shader is not supported.
at the top:
at org.lwjgl.BufferChecks.checkFunctionAddress(BufferChecks.java:58)
at org.lwjgl.opengl.ARBShaderObjects.glDeleteObjectARB(ARBShaderObjects.java:65)
at WayofTime.alchemicalWizardry.common.renderer.block.
ShaderHelper.createShader(ShaderHelper.java:125)
at WayofTime.alchemicalWizardry.common.renderer.block
.ShaderHelper.createProgram(ShaderHelper.java:80)
at WayofTime.alchemicalWizardry.common.renderer.bloc
k.ShaderHelper.initShaders(ShaderHelper.java:33)
at WayofTime.alchemicalWizardry.client.ClientProxy.registerRenderers(ClientProxy.java:172)
at WayofTime.alchemicalWizardry.AlchemicalWizardry.load(AlchemicalWizardry.java:558)
The problem is that the version of opengl does not support shaders which seems to be needed for blood magic. However I wouldn't be surprised if other mods need it thus even after you remove it it may crash.
The only real solution would be to get a GPU or driver that can handle the needed openGL if that can not be done then remove blood magic and prey that it is the only thing that will cause a crash.This however means you can't play on a server which has blood magic.