[10:06:15 ERROR]: [ModernPluginLoadingStrategy] Could not load plugin 'GUITrashCan.jar' in folder 'plugins/.paper-remapped'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/kolbygreen/trashcan/Main has been compiled by a more recent version of the Java Runtime (class file version 66.0), this version of the Java Runtime only recognizes class file versions up to 65.0
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:129) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:35) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at io.papermc.paper.plugin.entrypoint.strategy.modern.ModernPluginLoadingStrategy.loadProviders(ModernPluginLoadingStrategy.java:116) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:38) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:40) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:546) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:292) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1215) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:330) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: java.lang.UnsupportedClassVersionError: me/kolbygreen/trashcan/Main has been compiled by a more recent version of the Java Runtime (class file version 66.0), this version of the Java Runtime only recognizes class file versions up to 65.0
at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[?:?]
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027) ~[?:?]
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:243) ~[paper-mojangapi-1.21.1-R0.1-SNAPSHOT.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:593) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:169) ~[paper-mojangapi-1.21.1-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:164) ~[paper-mojangapi-1.21.1-R0.1-SNAPSHOT.jar:?]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at java.base/java.lang.Class.forName0(Native Method) ~[?:?]
at java.base/java.lang.Class.forName(Class.java:534) ~[?:?]
at java.base/java.lang.Class.forName(Class.java:513) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:78) ~[paper-mojangapi-1.21.1-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:125) ~[paper-1.21.1.jar:1.21.1-40-2fdb2e9]
... 9 more

# ------------------------------------------------------------------------- #
#
# GUI Trashcan by Hyperian Design and Development
#
# Please report any bugs on our Spigot page or Discord channel. Thank you!
#
# ------------------------------------------------------------------------- #

# Trashcan GUI

# Enable or disable messages when players open/close the Trash Can GUI
# If set to true, players will receive a message when opening or closing the GUI.
enableTrashCanMessages: true

# The message players will receive when they open the Trash Can.
# You can customize it using color codes (e.g., &e for yellow, &l for bold).
openTrashCanMessage: '&e&lGUI Trashcan &8&l» &eYou have opened the trash can.'

# The message players will receive when they close the Trash Can.
# Also customizable with color codes.
closeTrashCanMessage: '&e&lGUI Trashcan &8&l» &cYou have closed the trash can.'

# The name of the Trash Can GUI that players will see at the top of the inventory screen.
# This supports color codes.
trashCanName: '&e&lTRASH CAN GUI'

# The block type used for the outline of the Trash Can GUI.
# This should be a valid Minecraft material (e.g., "GLASS", "LIME_STAINED_GLASS_PANE").
outLineBlock: LIME_STAINED_GLASS_PANE

# The display name for the outline blocks in the Trash Can GUI.
# This is usually blank or a simple string (e.g., " " for an empty display).
# You can use color codes here too.
outLineBlockDisplay: ' '  # Red with no text, just a blank name

# The block used for the "Close Trash Can" button, which will appear at the bottom-right corner of the GUI.
# This should be a valid Minecraft material (e.g., "BARRIER").
closeTrashCanBlock: BARRIER

# The display name for the "Close Trash Can" button.
# This will appear when players hover over the close button.
closeTrashCanBlockDisplay: '&4&lCLICK TO CLOSE TRASH CAN'  # Red bold text saying "Close the can"

# The size of the GUI inventory. This must be a multiple of 9 (e.g., 9, 18, 27, 36, 45, 54).
# The size defines how many slots the Trash Can GUI will have. The default is 27 slots (3 rows).
guiSize: 54

# The message players will see if they don't have permission to open the Trash Can.
# Customize it with color codes.
noPermission: '&e&lGUI Trashcan &8&l» &cYou don''t have permission to use this!'