Help server crashes at start up

[Ye wot]

auncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupServer(FMLLaunchHandler.java:74) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForServerLaunch(FMLLaunchHandler.java:39) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.common.launcher.FMLServerTweaker.injectIntoClassLoader(FMLServerTweaker.java:23) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.reflect.Method.invoke(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:43) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12) [00:18:22] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at /home/gs/gs/data/servers/6694622/. for Forge Mod Loader java.lang.UnsupportedClassVersionError: cr0s/warpdrive/core/FMLLoadingPlugin : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.7.0_80] at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.7.0_80] at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.7.0_80] at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.7.0_80] at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.7.0_80] at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_80] at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_80] at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_80] at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.7.0_80] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_80] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_80] at java.lang.Class.forName0(Native Method) ~[?:1.7.0_80] at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_80] at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460) ~[forge-1.7.10-10.13.4.1614-1.7.10-universal.jar:?] at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389) ~[forge-1.7.10-10.13.4.1614-1.7.10-universal.jar:?] at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221) ~[forge-1.7.10-10.13.4.1614-1.7.10-universal.jar:?] at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.7.10-10.13.4.1614-1.7.10-universal.jar:?] at cpw.mods.fml.relauncher.FMLLaunchHandler.setupServer(FMLLaunchHandler.java:74) [forge-1.7.10-10.13.4.1614-1.7.10-universal.jar:?] at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForServerLaunch(FMLLaunchHandler.java:39) [forge-1.7.10-10.13.4.1614-1.7.10-universal.jar:?] at cpw.mods.fml.common.launcher.FMLServerTweaker.injectIntoClassLoader(FMLServerTweaker.java:23) [forge-1.7.10-10.13.4.1614-1.7.10-universal.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:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_80] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_80] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_80] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_80] at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:43) [forge-1.7.10-10.13.4.1614-1.7.10-universal.jar:?] at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12) [forge-1.7.10-10.13.4.1614-1.7.10-universal.jar:?] A problem occurred running the Server launcher.[00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.reflect.InvocationTargetException [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.reflect.Method.invoke(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:43) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.UnsupportedClassVersionError: cr0s/warpdrive/core/FMLLoadingPlugin : Unsupported major.minor version 52.0 [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.defineClass1(Native Method) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.defineClass(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.security.SecureClassLoader.defineClass(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.defineClass(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.access$100(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader$1.run(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader$1.run(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.security.AccessController.doPrivileged(Native Method) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.findClass(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.Class.forName0(Native Method) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.Class.forName(Unknown Source) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupServer(FMLLaunchHandler.java:74) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForServerLaunch(FMLLaunchHandler.java:39) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at cpw.mods.fml.common.launcher.FMLServerTweaker.injectIntoClassLoader(FMLServerTweaker.java:23) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [00:18:22] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: ... 6 more