Can't install mods

I have tried to add mods and I can't figure out what this error means - please help!

[13:29:36] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[13:29:36] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[13:29:36] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[13:29:36] [main/INFO] [FML]: Forge Mod Loader version 7.10.103.1352 for Minecraft 1.7.10 loading
[13:29:36] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.6.0_65, running on Mac OS X:x86_64:10.8.5, installed at /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
[13:29:36] [main/WARN] [FML]: The coremod appeng.transformer.AppEngCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[13:29:36] [main/INFO] [FML]: [AppEng] Core Init
[13:29:36] [main/WARN] [FML]: The coremod codechicken.core.launch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[13:29:37] [main/INFO] [STDERR]: [codechicken.core.launch.DepLoader$DepLoadInst:checkExisting:436]: Warning: version of bspkrsCore, 6.16 is newer than request 6.9
[13:29:37] [main/WARN] [FML]: The coremod cofh.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:461]: java.lang.UnsupportedClassVersionError: nf/fr/ephys/cookiecore/common/CookieCoreASM : Unsupported major.minor version 51.0
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.defineClass1(Native Method)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.security.AccessController.doPrivileged(Native Method)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.Class.forName0(Native Method)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.Class.forName(Class.java:249)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:417)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:346)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:214)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[13:29:37] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at /Users/sscherer/Library/Application Support/minecraft for Forge Mod Loader
java.lang.UnsupportedClassVersionError: nf/fr/ephys/cookiecore/common/CookieCoreASM : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.6.0_65]
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) ~[?:1.6.0_65]
at java.lang.ClassLoader.defineClass(ClassLoader.java:621) ~[?:1.6.0_65]
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) ~[?:1.6.0_65]
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) ~[?:1.6.0_65]
at java.net.URLClassLoader.access$000(URLClassLoader.java:58) ~[?:1.6.0_65]
at java.net.URLClassLoader$1.run(URLClassLoader.java:197) ~[?:1.6.0_65]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.6.0_65]
at java.net.URLClassLoader.findClass(URLClassLoader.java:190) ~[?:1.6.0_65]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.11.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:306) ~[?:1.6.0_65]
at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ~[?:1.6.0_65]
at java.lang.Class.forName0(Native Method) ~[?:1.6.0_65]
at java.lang.Class.forName(Class.java:249) ~[?:1.6.0_65]
at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:417) ~[forge-1.7.10-10.13.2.1352-1.7.10.jar:?]
at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:346) ~[forge-1.7.10-10.13.2.1352-1.7.10.jar:?]
at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:214) ~[forge-1.7.10-10.13.2.1352-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.7.10-10.13.2.1352-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) [forge-1.7.10-10.13.2.1352-1.7.10.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.7.10-10.13.2.1352-1.7.10.jar:?]
at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126) [forge-1.7.10-10.13.2.1352-1.7.10.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.11.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]
Exception in thread "main" [13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:461]: java.lang.UnsupportedClassVersionError: nf/fr/ephys/cookiecore/common/CookieCoreASM : Unsupported major.minor version 51.0
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.defineClass1(Native Method)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.security.AccessController.doPrivileged(Native Method)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.Class.forName0(Native Method)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.Class.forName(Class.java:249)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:417)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:346)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:214)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[13:29:37] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)