[20:55:56 ERROR]: Error occurred while enabling MortuusTerraCore v1.0 (Is it up to date?)
java.lang.NullPointerException: null
        at com.mortuusterra.MortuusTerraCore.onEnable(MortuusTerraCore.java:67) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[spigot.jar:git-Spigot-93e20b3-9ab758c]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:402) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:384) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:333) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at net.minecraft.server.v1_12_R1.MinecraftServer.t(MinecraftServer.java:422) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at net.minecraft.server.v1_12_R1.MinecraftServer.l(MinecraftServer.java:383) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at net.minecraft.server.v1_12_R1.MinecraftServer.a(MinecraftServer.java:338) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:272) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:545) [spigot.jar:git-Spigot-93e20b3-9ab758c]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_144]