The plugin finally have the italian & english languages (you can modify it from the config.yml)

and the console gives you some info about the protocol of the player like:

[18:26:33] [User Authenticator #1/INFO]: UUID of player mrcat231 is a5831626-13f2-365c-8138-5ae13e103285
[18:26:33] [Netty Server IO #1/WARN]: [ViaVersion] (1.17->1.16.4) Increased world height is NOT SUPPORTED for 1.16 players and below. They will see a void below y 0 and above 256. You can enable the `bedrock-at-y-0` config option to replace the air with a bedrock layer.
[18:26:34] [Server thread/INFO]: [VersionLoader] Checking protocol for player: mrcat231
[18:26:34] [Server thread/INFO]: [VersionLoader] Player mrcat231 is trying to join with protocol: 340
[18:26:34] [Server thread/INFO]: [VersionLoader] Player mrcat231 kicked. Protocol: 340 (version 1.12.2 I chose 1.20.4 from the config)