BusinessCore Errors 2

[01:26:06] [Server thread/ERROR]: Error occurred while disabling BusinessCore v1.4.3-Beta (Is it up to date?)
java.lang.NullPointerException
	at me.beastman3226.bc.BusinessCore$FileFunctions.save(BusinessCore.java:434) ~[?:?]
	at me.beastman3226.bc.BusinessCore.onDisable(BusinessCore.java:123) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:252) ~[craftbukkit3020:git-Bukkit-1.7.2-R0.3-b3020jnks]
	at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:374) [craftbukkit3020:git-Bukkit-1.7.2-R0.3-b3020jnks]
	at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:408) [craftbukkit3020:git-Bukkit-1.7.2-R0.3-b3020jnks]
	at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:401) [craftbukkit3020:git-Bukkit-1.7.2-R0.3-b3020jnks]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.disablePlugins(CraftServer.java:390) [craftbukkit3020:git-Bukkit-1.7.2-R0.3-b3020jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.stop(MinecraftServer.java:375) [craftbukkit3020:git-Bukkit-1.7.2-R0.3-b3020jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:488) [craftbukkit3020:git-Bukkit-1.7.2-R0.3-b3020jnks]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit3020:git-Bukkit-1.7.2-R0.3-b3020jnks]