Does not work in my 1.19.1 bungee cord server when i use it, it use doubles the chat

Doesn't Work at all!.
I've got only a Crash-Report.
I installed all needed Plugins.
Bungeecord works but Paper doesn't.

Crash Report:
java.lang.NullPointerException: Cannot invoke "me.justrotem.bukkit.Main.getDataFolder()" because "me.justrotem.bukkit.utils.ConfigManager.plugin" is null
at me.justrotem.bukkit.utils.ConfigManager.loadConfig(ConfigManager.java:21) ~[LPRankCommand.jar:?]
at me.justrotem.bukkit.Main.onEnable(Main.java:33) ~[LPRankCommand.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:541) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugin(CraftServer.java:560) ~[paper-1.18.2.jar:git-Paper-310]
at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugins(CraftServer.java:474) ~[paper-1.18.2.jar:git-Paper-310]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:664) ~[paper-1.18.2.jar:git-Paper-310]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:431) ~[paper-1.18.2.jar:git-Paper-310]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:316) ~[paper-1.18.2.jar:git-Paper-310]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1163) ~[paper-1.18.2.jar:git-Paper-310]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) ~[paper-1.18.2.jar:git-Paper-310]
at java.lang.Thread.run(Thread.java:833) ~[?:?]

this plugin surpassed my plugin as it has smaller size, more features, and fancy messages
great work :)