Помогите Не видит плагин

Учусь создавать плагины. Написал самый обычный, который в консоль выводит сообщение о запуске. Сделал из него jar'ник, закинул в папку plugins. Скачал ещё другой плагин, его видно, мой - нет.

Test.java :

package Podolskii;

import java.util.logging.Logger;

import org.bukkit.plugin.java.JavaPlugin;

public class Test extends JavaPlugin{

Logger log = getLogger();

@Override
public void onEnable() {
log.info("Работает, а че");
}

@Override
public void onDisable() {

}
}

plugin.yml :

name: Test
main: Podolskii.Test
version: 1.0

 

[22:51:38] [Server thread/WARN]: Legacy plugin Test v0.1 does not specify an api-version.
[22:51:38] [Server thread/ERROR]: Could not load 'plugins\Test.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: Podolskii/main/Test 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:139) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:394) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:301) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.loadPlugins(CraftServer.java:383) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:185) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:809) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$0(MinecraftServer.java:164) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_221]
Caused by: java.lang.UnsupportedClassVersionError: Podolskii/main/Test 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_221]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_221]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_221]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:163) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:96) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_221]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_221]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_221]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_221]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[spigot.jar:2991-Spigot-018b9a0-f3f3094]
... 7 more