[10:19:47] [Server thread/INFO]: Structure Info Saving: true
[10:19:48] [Server thread/ERROR]: Could not load 'plugins\CodeEngineProject.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/Main has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:327) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:248) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.craftbukkit.v1_12_R1.CraftServer.loadPlugins(CraftServer.java:305) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.craftbukkit.v1_12_R1.CraftServer.reload(CraftServer.java:750) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.Bukkit.reload(Bukkit.java:525) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:27) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:648) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchServerCommand(CraftServer.java:634) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at net.minecraft.server.v1_12_R1.DedicatedServer.aP(DedicatedServer.java:444) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:407) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot.jar:git-Spigot-dcd1643-e60fc34]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_191]
Caused by: java.lang.UnsupportedClassVersionError: me/Main has been compiled by a more recent version of the Java Runtime (class file version 55.0), 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_191]
    at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_191]
    at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_191]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:148) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:100) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_191]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_191]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_191]
    at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_191]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:78) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
    ... 14 more
[10:19:48] [Server thread/INFO]: Server permissions file permissions.yml is empty, ignoring it
[10:19:48] [Server thread/INFO]: CONSOLE: Reload complete.