[09:58:37] [Server thread/ERROR]: Could not load 'plugins\legendzrpg.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/plugin/legendzrpg/main/main has been compiled by a more recent version of the Java Runtime (class file version 59.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:137) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:393) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:301) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.loadPlugins(CraftServer.java:381) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.reload(CraftServer.java:855) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.Bukkit.reload(Bukkit.java:651) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:27) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:148) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.dispatchCommand(CraftServer.java:742) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.dispatchServerCommand(CraftServer.java:728) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at net.minecraft.server.v1_16_R3.DedicatedServer.handleCommandQueue(DedicatedServer.java:373) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at net.minecraft.server.v1_16_R3.DedicatedServer.b(DedicatedServer.java:343) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at net.minecraft.server.v1_16_R3.MinecraftServer.a(MinecraftServer.java:964) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:812) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$0(MinecraftServer.java:155) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_281]
Caused by: java.lang.UnsupportedClassVersionError: me/plugin/legendzrpg/main/main has been compiled by a more recent version of the Java Runtime (class file version 59.0), 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_281]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_281]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_281]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:163) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:96) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_281]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_281]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_281]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_281]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[craftbukkit.jar:2991-Bukkit-f3f3094]
... 15 more