[20:15:43 ERROR]: Could not pass event InventoryClickEvent to ShopGUIPlus v1.49.1
java.lang.NoClassDefFoundError: net/mmogroup/mmolib/api/item/NBTItem
        at net.brcdev.shopgui.provider.item.MMOItemsItemProvider.isValidItem(MMOItemsItemProvider.java:23) ~[?:?]
        at net.brcdev.shopgui.item.ItemManager.lambda$getCustomItemProvider$1(ItemManager.java:77) ~[?:?]
        at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:176) ~[?:?]
        at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1631) ~[?:?]
        at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) ~[?:?]
        at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) ~[?:?]
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) ~[?:?]
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]
        at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150) ~[?:?]
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
        at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:543) ~[?:?]
        at net.brcdev.shopgui.item.ItemManager.getCustomItemProvider(ItemManager.java:77) ~[?:?]
        at net.brcdev.shopgui.util.ItemUtils.compareItemStacks(ItemUtils.java:555) ~[?:?]
        at net.brcdev.shopgui.util.InventoryUtils.getPlayersItemAmount(InventoryUtils.java:110) ~[?:?]
        at net.brcdev.shopgui.shop.ShopManager.handleItemSellAll(ShopManager.java:1057) ~[?:?]
        at net.brcdev.shopgui.listener.PlayerListener.clickSellAllItem(PlayerListener.java:513) ~[?:?]
        at net.brcdev.shopgui.listener.PlayerListener.clickShopGui(PlayerListener.java:245) ~[?:?]
        at net.brcdev.shopgui.listener.PlayerListener.onInventoryClick(PlayerListener.java:147) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor571.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.16.5.jar:git-Purpur-969]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[patched_1.16.5.jar:git-Purpur-969]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.16.5.jar:git-Purpur-969]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:607) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.PlayerConnection.a(PlayerConnection.java:2638) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.PacketPlayInWindowClick.a(SourceFile:32) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.PacketPlayInWindowClick.a(SourceFile:10) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:43) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.TickTask.run(SourceFile:18) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.MinecraftServer.bb(MinecraftServer.java:1207) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.MinecraftServer.executeNext(MinecraftServer.java:1200) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.MinecraftServer.sleepForTick(MinecraftServer.java:1176) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1020) ~[patched_1.16.5.jar:git-Purpur-969]
        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:176) ~[patched_1.16.5.jar:git-Purpur-969]
        at java.lang.Thread.run(Thread.java:834) [?:?]