Hi,
plugin is installed, and perms are given. but doing /ban for example. does nothing.
When I want to give someone a ban, for example: /ban playername noob  i don't get any message on chat.

This is how my compile log looks like:
[SERVER v1.0.24] Started as service
[SERVER v1.0.24] Running as service
[SERVER v1.0.24] Got Message: Ready
[SERVER v1.0.24] Got Message: Compile
[SERVER v1.0.24] Console: EnhancedBanSystem.cs(2150,20): warning CS0219: The variable `steamid' is assigned but its value is never used
EnhancedBanSystem.cs(2151,20): warning CS0219: The variable `name' is assigned but its value is never used
EnhancedBanSystem.cs(2324,20): warning CS0219: The variable `steamid' is assigned but its value is never used
EnhancedBanSystem.cs(2326,20): warning CS0219: The variable `name' is assigned but its value is never used
EnhancedBanSystem.cs(2327,20): warning CS0219: The variable `errorreason' is assigned but its value is never used

[SERVER v1.0.24] Connection closed.
[SERVER v1.0.24] Shutdown

this is how my fillet 'EnhancedBanSystem.json' looks:
{
"Ban - Broadcast": true,
"Ban - Default Reason": "Banned",
"Ban - Evade": true,
"Ban - Evade Reason": "Ban Evade",
"Ban - Log": true,
"DataType - Files - use": false,
"DataType - MySQL - Database": "banlist",
"DataType - MySQL - Host": "localhost",
"DataType - MySQL - Pass": "toor",
"DataType - MySQL - Port": 3306,
"DataType - MySQL - use": false,
"DataType - MySQL - User": "root",
"DataType - Native - use": false,
"DataType - PlayerDatabase - IP Filename": "EnhancedBanSystem_IPs.json",
"DataType - PlayerDatabase - use": false,
"DataType - SQLite - Database Filename": "banlist.db",
"DataType - SQLite - use": false,
"DataType - WebAPI - Banlist": "http://webpage.com/banlist.php?startid={startid}",
"DataType - WebAPI - Host": "http://webpage.com/api.php?action=ban&pass=mypassword&id={id}&steamid={steamid}&name={name}&ip={ip}&reason={reason}&source={source}&game={game}&platform={platform}&server={server}&tempban={expiration}",
"DataType - WebAPI - IsBanned": "http://webpage.com/api.php?action=isbanned&pass=mypassword&id={id}&update={update}&steamid={steamid}&ip={ip}&time={time}&name={name}&game=Rust&server=rust.kortal.org:28015",
"DataType - WebAPI - Unban": "http://webpage.com/api.php?action=unban&pass=mypassword&steamid={steamid}&name={name}&ip={ip}&name={name}&source={source}",
"DataType - WebAPI - use": false,
"Denied Connection - Log": true,
"DiscordMessages - Discord Webhook": "https://support.discordapp.com/hc/en-us/articles/228383668-Intro-to-Webhooks",
"DiscordMessages - Use Discord": false,
"Kick - Broadcast": true,
"Kick - Log": true,
"Kick - On Ban": true,
"Permissions - Ban": "enhancedbansystem.ban",
"Permissions - Banlist": "enhancedbansystem.banlist",
"Permissions - Kick": "enhancedbansystem.kick",
"Permissions - Unban": "enhancedbansystem.unban",
"Server Info - Game": "Rust",
"Server Info - IP:PORT": "1.1.1.1:28015",
"Server Info - Platform": "Steam"
}

Please check the main oxide log, not the compiler log.

Thanks for your response Wolf.
I found this part in a log file:
02:39 [Warning] [Enhanced Ban System] You must enable at least one Ban System to use this plugin!

I used google search engine and i found some posts to which you responded:
https://umod.org/community/enhanced-ban-system/12681-you-must-enable-at-least-one-ban-system-to-use-this-plugin

... but again, i don't know how to turn on this mod?
You can see above my EnhancedBanSystem.json
What exactly do I need to do to make this mode work for me ?

You need to set one of the "use" settings to true; you have them all set to false.

Yes I know, but which one exactly?
I only want this plugin to work for me

You'd enable the one you want to use. Native is most likely what you want.