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Im trying to load FoolCraft for my son. I downloaded twitch, FoolCraft, and hit play. I get the old launch screen and when I hit play, it downloads several items, tries to load, stops, and gives me the below error code. Any help would be appreciated!

Im on a IMAC 10.9.5 Minecraft vinilla plays fine and is on 1.12 Thanks in advance!

[19:50:37] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[19:50:37] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[19:50:37] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[19:50:37] [main/INFO] [FML]: Forge Mod Loader version 12.18.3.2281 for Minecraft 1.10.2 loading
[19:50:37] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.6.0_65, running on Mac OS X:x86_64:10.9.5, installed at /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: java.lang.UnsupportedClassVersionError: com/brandon3055/brandonscore/asm/LoadingPlugin : Unsupported major.minor version 51.0
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.lang.ClassLoader.defineClass1(Native Method)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.security.AccessController.doPrivileged(Native Method)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.lang.Class.forName0(Native Method)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at java.lang.Class.forName(Class.java:249)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:564)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:425)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:255)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:79)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:41)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:138)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[19:50:37] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:41]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[19:50:37] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at /Users/Becarter/Documents/Curse/Minecraft/Instances/FoolCraft for Forge Mod Loader
java.lang.UnsupportedClassVersionError: com/brandon3055/brandonscore/asm/LoadingPlugin : 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-1.12.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 net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:564) ~[forge-1.10.2-12.18.3.2281.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:425) ~[forge-1.10.2-12.18.3.2281.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:255) ~[forge-1.10.2-12.18.3.2281.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102) [forge-1.10.2-12.18.3.2281.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:79) [forge-1.10.2-12.18.3.2281.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:41) [forge-1.10.2-12.18.3.2281.jar:?]
at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:138) [forge-1.10.2-12.18.3.2281.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Exception in thread "main"

First of all, Thanks for replying. I want to make this work for my son, and Im lost at this point...

Thats the version of the Mod that I downloaded from Twitch. I was surprised to see the old launch screen, but I don't know if thats the problem or how i would fix it.

The Java issue.... I have been on the Java website and thru my IMac. The only Java file i found on my MAC was "Java for OS X 2013-005 version 1. Would you delete Java completely, then download the newest version?

Thanks for your help. I know just enough about Mac's to make things much harder on myself....