Minecraft Paper Server Crash

[10:01:49 ERROR]: Error occurred while enabling NickNamer v3.17.0-SNAPSHOT (Is it up to date?)
java.lang.NullPointerException: null
    at org.inventivetalent.pluginannotations.command.AnnotatedCommand.register(AnnotatedCommand.java:376) ~[?:?]
    at org.inventivetalent.pluginannotations.command.CommandAnnotations.registerCommands(CommandAnnotations.java:39) ~[?:?]
    at org.inventivetalent.nicknamer.NickNamerPlugin.onEnable(NickNamerPlugin.java:184) ~[?:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.15.2.jar:git-Paper-135]
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337) ~[patched_1.15.2.jar:git-Paper-135]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:435) ~[patched_1.15.2.jar:git-Paper-135]
    at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugin(CraftServer.java:470) ~[patched_1.15.2.jar:git-Paper-135]
    at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugins(CraftServer.java:384) ~[patched_1.15.2.jar:git-Paper-135]
    at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:482) ~[patched_1.15.2.jar:git-Paper-135]
    at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.15.2.jar:git-Paper-135]
    at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:885) ~[patched_1.15.2.jar:git-Paper-135]
    at java.lang.Thread.run(Thread.java:835) [?:?]