Problem/Bug My people can't use perms!

okay so I have a server with 23 players max! and I added a new minigame for everyone called Blockball but unfortunetly whatever i do i can't give the permissions to my players how can i fix this problem? pls help me plsss!!! wiki: https://shynixn.github.io/BlockBall/build/html/gettingstarted/index.html

Config.yml:
-------------------

Code:

global-join:
  enabled: true
  command: bbjoin
  useage: /<command> <game> <team>
  description: Join a game.
  permission: blockball.command.use
  permission-message: You don't have permission
global-spectate:
  enabled: true
  command: bbspectate
  useage: /<command> <game>
  description: Spectate a game.
  permission: blockball.command.use
  permission-message: You don't have permission
global-leave:
  enabled: true
  command: bbleave
  useage: /<command>
  description: Leaves current game.
  permission: blockball.command.use
  permission-message: You don't have permission

 

By using the Permission.yml but doesn't work!

but doesn't work pls tell me if you know what can help

EDIT by Moderator: merged posts, please use the edit button instead of double posting.