[20:01:12] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to flexEnchant v1.0
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:226) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:193) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:189) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:682) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at net.minecraft.server.v1_8_R1.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:50) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at net.minecraft.server.v1_8_R1.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:80) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_71]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_71]
at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:683) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [minecraft_server.jar:git-Spigot-29dbaa7-262c777]
at java.lang.Thread.run(Thread.java:745) [?:1.7.0_71]
Caused by: java.lang.NullPointerException
at me.perezhd.flex.Main.addCoins(Main.java:119) ~[?:?]
at me.perezhd.flex.listeners.CoinRightClick.onPlayerInteract(CoinRightClick.java:50) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_71]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_71]
at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_71]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[minecraft_server.jar:git-Spigot-29dbaa7-262c777]
... 17 more