Erreur console | Plugin Coins

[21:28:00 INFO]: [SimplifiedCoins] Enabling SimplifiedCoins v1.0
[21:28:00 INFO]: Connected ok !
[21:28:00 ERROR]: Error occurred while enabling SimplifiedCoins v1.0 (Is it up to date?)
java.lang.NullPointerException
        at fr.eloxfire.SimplifiedCoins.SimplifiedCoins.onEnable(SimplifiedCoins.java:17) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:335) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugin(CraftServer.java:356) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.enablePlugins(CraftServer.java:316) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.reload(CraftServer.java:746) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.Bukkit.reload(Bukkit.java:534) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:25) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:646) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchServerCommand(CraftServer.java:632) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.DedicatedServer.aM(DedicatedServer.java:353) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:317) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537) [spigot-1.8.jar:git-Spigot-550ebac-7019900]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_92]
[21:28:00 INFO]: Server permissions file permissions.yml is empty, ignoring it
[21:28:00 INFO]: CONSOLE: Reload complete.