12:29:28 [WARNING] [EndSwear] Task #42 for EndSwear v9.4 generated an exception
java.lang.IllegalArgumentException: File cannot be null
        at org.apache.commons.lang.Validate.notNull(Validate.java:203)
        at org.bukkit.configuration.file.FileConfiguration.save(FileConfiguration.java:50)
        at me.FreeSpace2.EndSwear.Pardoner.run(Pardoner.java:28)
        at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftTask.run(CraftTask.java:53)
        at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
        at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:524)
        at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:227)
        at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:488)
        at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:421)
        at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)