I'm trying to ban, kick, warn... a player, but nothing happens. No errors. I'm using the default config for the plugin. I can't use any BanManager commands when OnlineMode is set to false. My server is an offline server.

This may have been related to #661

Please try builds 110+ https://ci.frostcast.net/job/BanManager/

Yes, but it doesn't show anything

The banmanager commands work fine from console, but not from player despite having all the permissions

Did you check your console for additional information?

Nope, no errors or warnings at all

Were there any warnings or errors on start up?