lol
[10:17:10 ERROR]: [ModernPluginLoadingStrategy] Could not load plugin 'MajorInventory-1.0-SNAPSHOT.jar' in folder 'plugins/.paper-remapped'
org.bukkit.plugin.InvalidPluginException: Unsupported API version 1.21
at org.bukkit.craftbukkit.util.CraftMagicNumbers.checkSupported(CraftMagicNumbers.java:389) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:121) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:35) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at io.papermc.paper.plugin.entrypoint.strategy.modern.ModernPluginLoadingStrategy.loadProviders(ModernPluginLoadingStrategy.java:116) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:38) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:532) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:286) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1136) ~[paper-1.20.6.jar:1.20.6-151-a4f0f5c]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323) ~[p
The review section is no area for posting errors. And also not for issues happening on unsupported versions ! I now added 1.20.6 support. Use at own risk. First, try contacting support, then review. "lol"