When I use /clan doesn't show anything ingame and shows that on console: https://hastebin.com/osokupexag.vbs

And when a player uses the demote command (and the config is confirmation-for-demote: true) causes a huge flood for the clan.

Using PaperSpigot 1.8.8 and SimpleClans b73 (from Jenkins)

• /clan
  Delete your language file and let it regenerate. A line is missing. (Backup it if you have made changes)

• demote
  Flood on bb or console?

/clan ok

Flood on bb, all members off the clan receive the message, multiple times per minute.