Hello, sorry for bad English, created 3 worlds, but only returns the message Code (Text): you are not permitted to build config.yml Code (Text): settings: config: # With this enabled anyone set as op has full permissions when managing GroupManager # The user will be able to promote players to the same group or even above. opOverrides: true # Default setting for 'mantoglevalidate' # true will cause GroupManager to attempt name matching by default. validate_toggle: true data: save: # How often GroupManager will save it's data back to groups and users.yml minutes: 10 # Number of hours to retain backups (plugins/GroupManager/backup) hours: 24 logging: # level of detail GroupManager will use when logging. # Acceptable entries are - ALL,CONFIG,FINE,FINER,FINEST,INFO,OFF,SEVERE,WARNING level: INFO mirrors: # Worlds listed here have their settings mirrored in their children. # The first element 'world' is the main worlds name # subsequent elements 'world_nether' and 'world_the_end' are worlds which will use # the same user/groups files as the parent. # Each child world can be configured to mirror the 'groups', 'users' or both files from it's parent. world: world_nether: - users - groups world_the_end: - users - groups casa: casa: - users - groups mina1: mina1: - users - groups # world2: (World2 would have it's own set of user and groups files) # world3: # - users (World3 would use the users.yml from world2, but it's own groups.yml) # world4: # - groups (World4 would use the groups.yml from world2, but it's own users.yml) # world5: # - world6 (this would cause world6 to mirror both files from world5) WOLRD'S CONFIG FILES WORLD- Code (Text): groups: Default: default: true permissions: permissions.build - -bukkit.command.kill inheritance: - g:essentials_builder - g:essentials_default - g:bukkit_default info: prefix: '&e' build: true suffix: '' Builder: default: false permissions:  inheritance: - default - g:essentials_builder - g:towny_builder info: prefix: '&2' build: true suffix: '' Moderator: default: false permissions:  inheritance: - builder - g:essentials_moderator - g:bukkit_moderator - g:towny_moderator info: prefix: '&5' build: true suffix: '' Admin: default: false permissions:  inheritance: - moderator - g:essentials_admin - g:bukkit_admin - g:towny_admin info: prefix: '&c' build: true suffix: '' Owner: default: false permissions: - '*' inheritance: - admin info: prefix: '&4' build: true suffix: '' others are maps with the same settings. Please help, and sorry for bad English.