[17:48:56 ERROR]: Error occurred while enabling FluffyMachines vDEV - 65 (git a7af4837) (Is it up to date?)
java.lang.IncompatibleClassChangeError: Implementing class
        at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_281]
        at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_281]
        at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_281]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:178) ~[patched_1.16.5.jar:git-Paper-487]
        at org.bukkit.plugin.java.JavaPluginLoader.getClassByName(JavaPluginLoader.java:216) ~[patched_1.16.5.jar:git-Paper-487]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:122) ~[patched_1.16.5.jar:git-Paper-487]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:111) ~[patched_1.16.5.jar:git-Paper-487]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_281]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_281]
        at io.ncbpfluffybear.fluffymachines.machines.WarpPad.onBreak(WarpPad.java:44) ~[?:?]
        at io.ncbpfluffybear.fluffymachines.machines.WarpPad.<init>(WarpPad.java:26) ~[?:?]
        at io.ncbpfluffybear.fluffymachines.FluffyItemSetup.setup(FluffyItemSetup.java:330) ~[?:?]
        at io.ncbpfluffybear.fluffymachines.FluffyMachines.onEnable(FluffyMachines.java:110) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-487]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:380) ~[patched_1.16.5.jar:git-Paper-487]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:483) ~[patched_1.16.5.jar:git-Paper-487]
        at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:500) ~[patched_1.16.5.jar:git-Paper-487]
        at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:414) ~[patched_1.16.5.jar:git-Paper-487]
        at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:465) ~[patched_1.16.5.jar:git-Paper-487]
        at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:239) ~[patched_1.16.5.jar:git-Paper-487]
        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:936) ~[patched_1.16.5.jar:git-Paper-487]
        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:174) ~[patched_1.16.5.jar:git-Paper-487]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_281]