It seems that you have edited the jar directly without compiling it since it seems that you have removed the ProxyServer import.
If you don't have the source of a plugin, I would recommend that you consult with the original author or else make a separate plugin
In that event you still can't get the player's UUID, you must use another event
And for the offline mode, the online-mode=false is not supported, but you can check how FastLoginVelocity, LibreLogin or LimboAuth works
Velocity only kicks the player if you have a client with version 1.19.1 or higher and with a valid signed key (this was done because Mojang implemented the reporting system from version 1.19.1 onwards and made it more difficult to cancel or modify commands and chat from the proxy)
If you want to...
Instead of using an external fork of Velocity that has not been updated for days just for that, it would be better to use https://hangar.papermc.io/4drian3d/UnSignedVelocity that corrects the same error
Simple Velocity plugin to get the client with which a player has connected to your server
The plugin is not fully effective, several malicious clients hide their client branding when entering the server or impersonate vanilla clients.
However, the plugin can detect several...
Added Support for Chat Messages
There is a new option in the configuration to disable this (by default, it is set to true)
Download it from: https://modrinth.com/plugin/unsignedvelocity
Paper, Pufferfish or Purpur 1.19.3+
Configure multiple types of materials for your JumpPads (compatible with all types of pressure plates)
Activate JumpPads for worlds, regions and more (via LuckPerms Contexts). Permission for JumpPads usage: simplejumppads.jump...
Get the ability to run and develop Kotlin plugins on your Minecraft server or proxy.
This plugin includes the necessary Kotlin libraries to the server to avoid including them independently in several plugins at the same time
- Java 8+
Get the information of each server in your Velocity network
Velocity 3.2.0 build 224+
This command will give you information about all the servers you have in your Velocity network.
Get the information about a...
Allow your moderation or chat plugins to work again for users with versions 1.19.1 or higher
This plugin works by removing signed information from commands and messages sent by clients 1.19.1 or higher, allowing plugins that cancel proxy messages, such as ChatRegulator or...