플러그인을 적용할려고 하는데 

Could not load 'plugins\Kotlin.jar' in folder 'plugins'

org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: com/github/noonmaru/kotlin/KotlinPlugin 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:141) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:397) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:305) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.craftbukkit.v1_16_R3.CraftServer.loadPlugins(CraftServer.java:389) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:206) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:935) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:173) ~[patched_1.16.4.jar:git-Paper-416]

        at java.lang.Thread.run(Unknown Source) [?:1.8.0_301]

Caused by: java.lang.UnsupportedClassVersionError: com/github/noonmaru/kotlin/KotlinPlugin 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_301]

        at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_301]

        at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_301]

        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:178) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.plugin.java.JavaPluginLoader.getClassByName(JavaPluginLoader.java:216) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:122) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:111) ~[patched_1.16.4.jar:git-Paper-416]

        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_301]

        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_301]

        at java.lang.Class.forName0(Native Method) ~[?:1.8.0_301]

        at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_301]

        at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:79) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:137) ~[patched_1.16.4.jar:git-Paper-416]

        ... 7 more

[11:59:29 ERROR]: Could not load 'plugins\AutoReloader.jar' in folder 'plugins'

org.bukkit.plugin.UnknownDependencyException: Unknown dependency Kotlin. Please download and install Kotlin to run this plugin.

        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:272) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.craftbukkit.v1_16_R3.CraftServer.loadPlugins(CraftServer.java:389) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:206) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:935) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:173) ~[patched_1.16.4.jar:git-Paper-416]

        at java.lang.Thread.run(Unknown Source) [?:1.8.0_301]

[11:59:29 ERROR]: Could not load 'plugins\InvCaptive.jar' in folder 'plugins'

org.bukkit.plugin.UnknownDependencyException: Unknown dependency Kotlin. Please download and install Kotlin to run this plugin.

        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:272) ~[patched_1.16.4.jar:git-Paper-416]

        at org.bukkit.craftbukkit.v1_16_R3.CraftServer.loadPlugins(CraftServer.java:389) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:206) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:935) ~[patched_1.16.4.jar:git-Paper-416]

        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:173) ~[patched_1.16.4.jar:git-Paper-416]

        at java.lang.Thread.run(Unknown Source) [?:1.8.0_301]

이러면서 에러가 뜨는데 왜 뜨는거죠?