[18:16:54 WARN]: [LuckPerms] LuckPerms already has data for player 'Legend1337' - but this data is stored under a different UUID.
[18:16:54 WARN]: [LuckPerms] 'Legend1337' has previously used the unique ids [4deb3640-56c8-3f57-b0ac-b2096d102975] but is now connecting with 'cd48e835-9a56-3
[18:16:54 WARN]: [LuckPerms] The UUID the player is connecting with now is NOT Mojang-assigned (type 3). This implies that THIS server is not authenticating co
[18:16:54 WARN]: [LuckPerms] If you're using BungeeCord/Velocity, please ensure that IP-Forwarding is setup correctly on all of your backend servers!
[18:16:54 WARN]: [LuckPerms] See here for more info: https://github.com/lucko/LuckPerms/wiki/Network-Installation#pre-setup
[18:16:54 ERROR]: Could not pass event AsyncPlayerPreLoginEvent to GreenBan v1.2
org.bukkit.event.EventException: null
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:72) ~[patched_1.12.2.jar:git-Paper-1613]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:74) ~[patched_1.12.2.jar:git-Paper-1613]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.12.2.jar:git-Paper-1613]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:513) ~[patched_1.12.2.jar:git-Paper-1613]
        at net.minecraft.server.v1_12_R1.LoginListener$LoginHandler.fireEvents(LoginListener.java:298) ~[patched_1.12.2.jar:git-Paper-1613]
        at net.minecraft.server.v1_12_R1.LoginListener$2.run(LoginListener.java:206) ~[patched_1.12.2.jar:git-Paper-1613]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_222]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_222]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]
Caused by: java.lang.NullPointerException
        at ru.den_abr.greenban.GreenBanPlugin.lambda$onPlayerLogin$0(GreenBanPlugin.java:36) ~[?:?]
        at java.util.Optional.orElseGet(Optional.java:267) ~[?:1.8.0_222]
        at ru.den_abr.greenban.GreenBanPlugin.onPlayerLogin(GreenBanPlugin.java:36) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor408.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70) ~[patched_1.12.2.jar:git-Paper-1613]
        ... 8 more