如题，用的是playerpoints点券插件，给点券以及信息版显示点券都没有问题
而且商店里面设置是正确的，这个没有问题
就是购买的时候一点后台就报错，前台无任何反应，下面是后台报错
这俩插件的各个版本我都换着试过了，依旧不行，求解答

[13:49:24 ERROR]: Could not pass event InventoryClickEvent to BossShop v2.0.5
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30) ~[spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:487) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:472) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:1403) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PacketPlayInWindowClick.a(SourceFile:32) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PacketPlayInWindowClick.handle(SourceFile:10) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:147) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.ServerConnection.c(ServerConnection.java:77) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:700) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:562) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:469) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
Caused by: java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.lang.String
        at org.black_ixx.bossshop.core.BSBuy.giveRewardCommand(BSBuy.java:374) ~[?:?]
        at org.black_ixx.bossshop.core.BSBuy.giveReward(BSBuy.java:328) ~[?:?]
        at org.black_ixx.bossshop.listeners.InventoryListener.purchase(InventoryListener.java:134) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_91]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_91]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_91]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_91]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[spigot-1.7.2-R0.4-20150926-4.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        ... 14 more

试试这个www.mcbbs.net/forum.php?mod=viewthread&tid=561954&highlight=bossshop

不要用魔改的playerpoints

我用普通的BS插件无法实现出售自定义物品。
所以你可以去下载重制版本。
但是这将会面临一个问题。。
我用重制版本的无法出售原版物品，不知道你会不会这样，去试试吧