Weird Graphics and Other Issues

[MollyKitty7]

Title:

Weird Graphics and Other Issues​

Launcher Version:

1.4.11​

Modpack:

Infinity Evolved​

Modpack Version:

2.3.5​

Log Link:

http://paste.feed-the-beast.com/view/c4227a2a​

Details of the issue:

So first I tried downloading the latest version of the modpack but it took a long time so I closed my computer to let it sleep while it downloaded it. After that, I tried to open it and it said it failed to launch it with this log:
[15:26:52] [main/ERROR]: Unable to launch
java.lang.ClassNotFoundException: cpw.mods.fml.common.launcher.FMLTweaker
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_66]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_66]
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[?:1.8.0_66]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_66]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:106) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_66]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_66]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_66]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_66]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:98) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
After that I tried to delete the ftb folder found in the C drive and the ftblauncher drive found in the %appdata%>Roaming. So after I find out its launching I'm like "Yay! Its fixed! " And then Im like...oh. Its all messed up now. It looks like this and when I tried to go through a portal I found blindly, it gave me some sort of error:
http://imgur.com/YLN8K8l
Thanks, I hope someone can help me!!! >.<​