Error occurred while enabling TitleManager v2.1.6 (Is it up to date?)
java.lang.IllegalArgumentException: Parameter specified as non-null is null: method io.puharesource.mc.titlemanager.internal.config.TMConfigMain$locale$1.invoke, parameter it
        at io.puharesource.mc.titlemanager.internal.config.TMConfigMain$locale$1.invoke(TMConfig.kt) ~[?:?]
        at io.puharesource.mc.titlemanager.internal.config.TMConfigMain$locale$1.invoke(TMConfig.kt:34) ~[?:?]
        at io.puharesource.mc.titlemanager.internal.config.TMConfig$DefaultImpls.value(TMConfig.kt:15) ~[?:?]
        at io.puharesource.mc.titlemanager.internal.config.TMConfigMain.value(TMConfig.kt:34) ~[?:?]
        at io.puharesource.mc.titlemanager.internal.config.TMConfigMain.<init>(TMConfig.kt:41) ~[?:?]
        at io.puharesource.mc.titlemanager.TitleManagerPlugin.reloadConfig(TitleManagerPlugin.kt:120) ~[?:?]
        at io.puharesource.mc.titlemanager.TitleManagerPlugin.getConfig(TitleManagerPlugin.kt:112) ~[?:?]
        at io.puharesource.mc.titlemanager.internal.InternalsKt.debug(Internals.kt:34) ~[?:?]
        at io.puharesource.mc.titlemanager.TitleManagerPlugin.onEnable(TitleManagerPlugin.kt:59) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:254) ~[patched_1.13.2.jar:git-Paper-480]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:325) ~[patched_1.13.2.jar:git-Paper-480]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) ~[patched_1.13.2.jar:git-Paper-480]
        at org.bukkit.craftbukkit.v1_13_R2.CraftServer.enablePlugin(CraftServer.java:441) ~[patched_1.13.2.jar:git-Paper-480]
        at org.bukkit.craftbukkit.v1_13_R2.CraftServer.enablePlugins(CraftServer.java:355) ~[patched_1.13.2.jar:git-Paper-480]
        at net.minecraft.server.v1_13_R2.MinecraftServer.l(MinecraftServer.java:613) ~[patched_1.13.2.jar:git-Paper-480]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:575) ~[patched_1.13.2.jar:git-Paper-480]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:435) ~[patched_1.13.2.jar:git-Paper-480]
        at net.minecraft.server.v1_13_R2.DedicatedServer.init(DedicatedServer.java:316) ~[patched_1.13.2.jar:git-Paper-480]
        at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:791) ~[patched_1.13.2.jar:git-Paper-480]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]