[18:32:59 ERROR]: Error occurred while enabling Denizen v1.3.0-SNAPSHOT (build 1804-REL) (Is it up to date?)
java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_20_R3/inventory/CraftInventoryCustom
	at com.denizenscript.denizen.nms.v1_20.Handler.<clinit>(Handler.java:276) ~[?:?]
	at java.lang.Class.forName0(Native Method) ~[?:?]
	at java.lang.Class.forName(Class.java:383) ~[?:?]
	at java.lang.Class.forName(Class.java:376) ~[?:?]
	at com.denizenscript.denizen.nms.NMSHandler.initialize(NMSHandler.java:55) ~[?:?]
	at com.denizenscript.denizen.Denizen.onEnable(Denizen.java:154) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:266) ~[spigot-api-1.20.1-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:342) ~[spigot-api-1.20.1-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480) ~[spigot-api-1.20.1-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugin(CraftServer.java:546) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3871-Spigot-d2eba2c-3f9263b]
	at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugins(CraftServer.java:460) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3871-Spigot-d2eba2c-3f9263b]
	at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:588) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3871-Spigot-d2eba2c-3f9263b]
	at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:413) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3871-Spigot-d2eba2c-3f9263b]
	at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:250) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3871-Spigot-d2eba2c-3f9263b]
	at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:972) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3871-Spigot-d2eba2c-3f9263b]
	at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:303) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3871-Spigot-d2eba2c-3f9263b]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.v1_20_R3.inventory.CraftInventoryCustom
	at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:147) ~[spigot-api-1.20.1-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:99) ~[spigot-api-1.20.1-R0.1-SNAPSHOT.jar:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[?:?]