[11:45
5] [Server thread/ERROR]: Could not load 'plugins\ItemEco.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/nahkd/spigot/itemeco/ItemEco has been compiled by a more recent version of the Java Runtime (class file version 60.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[spigot.jar:git-Spigot-6016ac7-10c10b3]
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java
29) ~[spigot.jar:git-Spigot-6016ac7-10c10b3]
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [spigot.jar:git-Spigot-6016ac7-10c10b3]
at org.bukkit.craftbukkit.v1_10_R1.CraftServer.loadPlugins(CraftServer.java:297) [spigot.jar:git-Spigot-6016ac7-10c10b3]
at net.minecraft.server.v1_10_R1.DedicatedServer.init(DedicatedServer.java:202) [spigot.jar:git-Spigot-6016ac7-10c10b3]
at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:539) [spigot.jar:git-Spigot-6016ac7-10c10b3]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_291]
Caused by: java.lang.UnsupportedClassVersionError: me/nahkd/spigot/itemeco/ItemEco has been compiled by a more recent version of the Java Runtime (class file version 60.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_291]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_291]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_291]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_291]
at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_291]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_291]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_291]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_291]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_291]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101) ~[spigot.jar:git-Spigot-6016ac7-10c10b3]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[spigot.jar:git-Spigot-6016ac7-10c10b3]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_291]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_291]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_291]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_291]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[spigot.jar:git-Spigot-6016ac7-10c10b3]
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[spigot.jar:git-Spigot-6016ac7-10c10b3]
... 6 more
