Waystones - null pointer

[JEI/]: Failed to get tooltip: 1xitem.waystones:warpStone@0 waystones:warpStone
java.lang.NullPointerException
	at net.blay09.mods.waystones.PlayerWaystoneData.getWaystonesTag(PlayerWaystoneData.java:42) ~[PlayerWaystoneData.class:?]
	at net.blay09.mods.waystones.PlayerWaystoneData.getLastWarpStoneUse(PlayerWaystoneData.java:120) ~[PlayerWaystoneData.class:?]
	at net.blay09.mods.waystones.item.ItemWarpStone.func_77624_a(ItemWarpStone.java:101) ~[ItemWarpStone.class:?]
	at net.minecraft.item.ItemStack.func_82840_a(ItemStack.java:614) ~[adz.class:?]
	at mezz.jei.plugins.vanilla.ingredients.ItemStackRenderer.getTooltip(ItemStackRenderer.java:43) [ItemStackRenderer.class:?]
	at mezz.jei.plugins.vanilla.ingredients.ItemStackRenderer.getTooltip(ItemStackRenderer.java:21) [ItemStackRenderer.class:?]
	at mezz.jei.IngredientInformation.getTooltipString(IngredientInformation.java:28) [IngredientInformation.class:?]
	at mezz.jei.util.IngredientListElement.<init>(IngredientListElement.java:56) [IngredientListElement.class:?]
	at mezz.jei.util.IngredientListElement.create(IngredientListElement.java:31) [IngredientListElement.class:?]
	at mezz.jei.IngredientBaseListFactory.addToBaseList(IngredientBaseListFactory.java:69) [IngredientBaseListFactory.class:?]
	at mezz.jei.IngredientBaseListFactory.create(IngredientBaseListFactory.java:40) [IngredientBaseListFactory.class:?]
	at mezz.jei.ItemFilter.<init>(ItemFilter.java:31) [ItemFilter.class:?]
	at mezz.jei.JeiStarter.start(JeiStarter.java:57) [JeiStarter.class:?]
	at mezz.jei.ProxyCommonClient.restartJEI(ProxyCommonClient.java:136) [ProxyCommonClient.class:?]
	at mezz.jei.ProxyCommonClient.access$000(ProxyCommonClient.java:37) [ProxyCommonClient.class:?]
	at mezz.jei.ProxyCommonClient$2.run(ProxyCommonClient.java:143) [ProxyCommonClient$2.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_92]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_92]
	at net.minecraft.util.Util.func_181617_a(SourceFile:45) [h.class:?]
	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1045) [bcx.class:?]
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371) [bcx.class:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [Main.class:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_92]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_92]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_92]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_92]
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_92]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_92]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_92]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_92]
	at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:310) [NewLaunch.jar:?]
	at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:395) [NewLaunch.jar:?]
	at org.multimc.EntryPoint.listen(EntryPoint.java:170) [NewLaunch.jar:?]
	at org.multimc.EntryPoint.main(EntryPoint.java:54) [NewLaunch.jar:?]