Blad org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError:

Skończyłem mój pierwszy plugin, gdy go ładuje wyskakuje mi błąd:

[15:15:15] [Server thread/ERROR]: Could not load 'plugins\Projekt.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: Projekt/Projekt 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:135) ~[spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:327) ~[spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:248) [spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at org.bukkit.craftbukkit.v1_13_R1.CraftServer.loadPlugins(CraftServer.java:315) [spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at net.minecraft.server.v1_13_R1.DedicatedServer.init(DedicatedServer.java:213) [spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at net.minecraft.server.v1_13_R1.MinecraftServer.run(MinecraftServer.java:686) [spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]
Caused by: java.lang.UnsupportedClassVersionError: Projekt/Projekt 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_211]
	at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_211]
	at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_211]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:150) ~[spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:100) ~[spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_211]
	at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_211]
	at java.lang.Class.forName0(Native Method) ~[?:1.8.0_211]
	at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_211]
	at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:78) ~[spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[spigot-1.13.jar:git-Spigot-fe3ab0d-162bda9]
	... 6 more

da się na to coś poradzić? Program w którym robie to IntelliJ IDEA