[13:17:22 ERROR]: Could not pass event InventoryClickEvent to ItemsSack v1.0.0
java.lang.NullPointerException: null
        at me.nahkd.itemssack.PlayerEventsHandler.onInventoryClick(PlayerEventsHandler.java:62) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor52.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.16.1.jar:git-Paper-135]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[patched_1.16.1.jar:git-Paper-135]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.16.1.jar:git-Paper-135]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:607) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.PlayerConnection.a(PlayerConnection.java:2423) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.PacketPlayInWindowClick.a(SourceFile:32) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.PacketPlayInWindowClick.a(SourceFile:10) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:23) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.TickTask.run(SourceFile:18) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.aZ(MinecraftServer.java:1137) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.executeNext(MinecraftServer.java:1130) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.sleepForTick(MinecraftServer.java:1091) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.v(MinecraftServer.java:1005) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.lambda$a$0(MinecraftServer.java:177) ~[patched_1.16.1.jar:git-Paper-135]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_281]
[13:17:22 ERROR]: Could not pass event InventoryClickEvent to ItemsSack v1.0.0
java.lang.NullPointerException: null
        at me.nahkd.itemssack.PlayerEventsHandler.onInventoryClick(PlayerEventsHandler.java:62) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor52.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.16.1.jar:git-Paper-135]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[patched_1.16.1.jar:git-Paper-135]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.16.1.jar:git-Paper-135]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:607) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.PlayerConnection.a(PlayerConnection.java:2423) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.PacketPlayInWindowClick.a(SourceFile:32) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.PacketPlayInWindowClick.a(SourceFile:10) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:23) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.TickTask.run(SourceFile:18) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.aZ(MinecraftServer.java:1137) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.executeNext(MinecraftServer.java:1130) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeAll(IAsyncTaskHandler.java:95) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.a(MinecraftServer.java:1266) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.v(MinecraftServer.java:1001) ~[patched_1.16.1.jar:git-Paper-135]
        at net.minecraft.server.v1_16_R1.MinecraftServer.lambda$a$0(MinecraftServer.java:177) ~[patched_1.16.1.jar:git-Paper-135]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_281]