Problem/Bug PermissionEx 1.8 error on console over permission

Does anyone know how to solve this error that is giving in the console something about permission ?

console log:

[13:05:46 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'infoboard.view', regex-matched a value of true from cache.
[13:05:46 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'infoboard.view', regex-matched a value of true from cache.
[13:05:46 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'tablist.staff', regex-matched a value of true from cache.
[13:05:46 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'tablist.staff', regex-matched a value of true from cache.
[13:05:48 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'tablist.staff', regex-matched a value of true from cache.
[13:05:48 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'tablist.staff', regex-matched a value of true from cache.
[13:05:49 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'infoboard.view', regex-matched a value of true from cache.
[13:05:49 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'infoboard.view', regex-matched a value of true from cache.
[13:05:49 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'tablist.staff', regex-matched a value of true from cache.
[13:05:49 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'tablist.staff', regex-matched a value of true from cache.
[13:05:50 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'tablist.staff', regex-matched a value of true from cache.
[13:05:50 INFO]: [PermissionsEx] User XandyDoGrau checked for permission 'tablist.staff', regex-matched a value of true from cache.

 

Code:

multiserver:
  use-netevents: true
permissions:
  debug: true
  allowOps: true
  user-add-groups-last: true
  log-players: true
  createUserRecords: false
  backend: file
  informplayers:
    changes: false
  basedir: plugins/PermissionsEx
  backends:
    file:
      type: file
      file: permissions.yml
updater: false
alwaysUpdate: false

 

Thank you very much, it worked.