i get this error

[gabbelitoV2]

i get this error

[09:46:17 ERROR]: [ModernPluginLoadingStrategy] Could not load plugin 'discord-whitelister-1.5.1.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: uk/co/angrybee/joe/DiscordWhitelister has been compiled by a more recent version of the Java Runtime (class file version 63.0), this version of the Java Runtime only recognizes class file versions up to 61.0
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:127) ~[purpur-1.20.4.jar:git-Purpur-2128]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:35) ~[purpur-1.20.4.jar:git-Purpur-2128]
at io.papermc.paper.plugin.entrypoint.strategy.modern.ModernPluginLoadingStrategy.loadProviders(ModernPluginLoadingStrategy.java:116) ~[purpur-1.20.4.jar:git-Purpur-2128]
at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:38) ~[purpur-1.20.4.jar:git-Purpur-2128]
at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36) ~[purpur-1.20.4.jar:git-Purpur-2128]
at org.bukkit.craftbukkit.v1_20_R3.CraftServer.loadPlugins(CraftServer.java:519) ~[purpur-1.20.4.jar:git-Purpur-2128]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:310) ~[purpur-1.20.4.jar:git-Purpur-2128]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1148) ~[purpur-1.20.4.jar:git-Purpur-2128]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:326) ~[purpur-1.20.4.jar:git-Purpur-2128]
at java.lang.Thread.run(Thread.java:840) ~[?:?]
Caused by: java.lang.UnsupportedClassVersionError: uk/co/angrybee/joe/DiscordWhitelister has been compiled by a more recent version of the Java Runtime (class file version 63.0), this version of the Java Runtime only recognizes class file versions up to 61.0
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?]
at java.lang.ClassLoader.defineClass(ClassLoader.java:1017) ~[?:?]
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:246) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:592) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:171) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:166) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
at java.lang.Class.forName0(Native Method) ~[?:?]
at java.lang.Class.forName(Class.java:467) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.(PluginClassLoader.java:80) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:123) ~[purpur-1.20.4.jar:git-Purpur-2128]
... 9 more

[Shimell]

Hi,

I had a quick read through and it mentions 'DiscordWhitelister has been compiled by a more recent version of the Java Runtime'. I installed Amazon Corretto to test the plugin on my server and it runs fine, so it may be more up to date. Maybe try that out and see if it works? Here's a link to it: https://corretto.aws/downloads/latest/amazon-corretto-21-x64-windows-jdk.msi

[gabbelitoV2]

I run PurpurMC

[gabbelitoV2]

do i need newer jdk i have 17

[gabbelitoV2]

i worked but i dont see players skin on whitelist in idscord