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[12:35:35 ERROR]: Fatal error trying to convert AutoSell v1.0:fr/xyness/autosell/Guis/CoffresGui.class
java.lang.IllegalArgumentException: Unsupported class file major version 65
at org.objectweb.asm.ClassReader.<init>(ClassReader.java:199) ~[asm-9.4.jar:9.4]
at org.objectweb.asm.ClassReader.<init>(ClassReader.java:180) ~[asm-9.4.jar:9.4]
at org.objectweb.asm.ClassReader.<init>(ClassReader.java:166) ~[asm-9.4.jar:9.4]
at org.bukkit.craftbukkit.v1_20_R1.util.Commodore.convert(Commodore.java:171) ~[purpur-1.20.1.jar:git-Purpur-2018]
at org.bukkit.craftbukkit.v1_20_R1.util.CraftMagicNumbers.processClass(CraftMagicNumbers.java:403) ~[purpur-1.20.1.jar:git-Purpur-2018]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:209) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:593) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:157) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:152) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
at fr.xyness.autosell.Listeners.MainListener.onInventoryClick(MainListener.java:132) ~[AutoSell-1.0.jar:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor624.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:77) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:git-Purpur-2018]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[purpur-1.20.1.jar:git-Purpur-2018]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:126) ~[purpur-1.20.1.jar:git-Purpur-2018]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:617) ~[purpur-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleContainerClick(ServerGamePacketListenerImpl.java:3302) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:58) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:23) ~[?:?]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:51) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[purpur-1.20.1.jar:git-Purpur-2018]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1366) ~[purpur-1.20.1.jar:git-Purpur-2018]
at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[purpur-1.20.1.jar:git-Purpur-2018]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1343) ~[purpur-1.20.1.jar:git-Purpur-2018]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1336) ~[purpur-1.20.1.jar:git-Purpur-2018]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1314) ~[purpur-1.20.1.jar:git-Purpur-2018]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1202) ~[purpur-1.20.1.jar:git-Purpur-2018]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323) ~[purpur-1.20.1.jar:git-Pur