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After I put it into my mods folder and tried to start minecraft this crash came up in my game output

[20:14:54] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker[20:14:54] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker[20:14:54] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker[20:14:54] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker[20:14:54] [main/INFO] [FML]: Forge Mod Loader version 11.15.1.2318 for Minecraft 1.8.9 loading[20:14:54] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.6.0_65, running on Mac OS X:x86_64:10.6.8, installed at /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: java.lang.UnsupportedClassVersionError: io/prplz/memoryfix/FMLLoadingPlugin : Unsupported major.minor version 52.0[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.lang.ClassLoader.defineClass1(Native Method)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.lang.ClassLoader.defineClass(ClassLoader.java:621)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.net.URLClassLoader.access$000(URLClassLoader.java:58)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.net.URLClassLoader$1.run(URLClassLoader.java:197)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.security.AccessController.doPrivileged(Native Method)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.net.URLClassLoader.findClass(URLClassLoader.java:190)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.lang.ClassLoader.loadClass(ClassLoader.java:306)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.lang.ClassLoader.loadClass(ClassLoader.java:247)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.lang.Class.forName0(Native Method)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at java.lang.Class.forName(Class.java:249)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:536)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:416)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:246)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)[20:14:54] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:configureForClientLaunch:34]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)[20:14:54] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at /Users/Farin/Library/Application Support/minecraft for Forge Mod Loaderjava.lang.UnsupportedClassVersionError: io/prplz/memoryfix/FMLLoadingPlugin : Unsupported major.minor version 52.0 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:536) ~[forge-1.8.9-11.15.1.2318-1.8.9.jar:?] at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:416) ~[forge-1.8.9-11.15.1.2318-1.8.9.jar:?] at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:246) ~[forge-1.8.9-11.15.1.2318-1.8.9.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95) [forge-1.8.9-11.15.1.2318-1.8.9.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72) [forge-1.8.9-11.15.1.2318-1.8.9.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.8.9-11.15.1.2318-1.8.9.jar:?] at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119) [forge-1.8.9-11.15.1.2318-1.8.9.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"

You're using Java 6, Install Java 8.

I cant download java 8 because my mac is too old to run it, any other alternatives?

you could try java 7 but you wouldnt be able to play in 1.12 and further