Solved remove command /gamemode 3 or /gamemode spectator

I saw this thread: https://bukkit.org/threads/how-to-remove-command-plugins.48975/ but it does not seem to work.
It says in the logs:

Code:

[07:15:27 WARN]: Could not register alias gamemode 3 because it contains illegal characters

Here is the command file:

Code:

# This is the commands configuration file for Bukkit.
# For documentation on how to make use of this file, check out the Bukkit Wiki at
# http://wiki.bukkit.org/Commands.yml
#
# If you need help on this file, feel free to join us on irc or leave a message
# on the forums asking for advice.
#
# IRC: #spigot @ irc.spi.gt
#    (If this means nothing to you, just go to http://www.spigotmc.org/pages/irc/ )
# Forums: http://www.spigotmc.org/
# Bug tracker: http://www.spigotmc.org/go/bugs

command-block-overrides:
- '*'
unrestricted-advancements: false
aliases:
  icanhasbukkit:
  - version $1-
  gamemode:
  - []

Fixed the problem, I just removed the command gamemode and there will be command blocks at spawn instead

new command file:

Code:

# This is the commands configuration file for Bukkit.

# For documentation on how to make use of this file, check out the Bukkit Wiki at
# http://wiki.bukkit.org/Commands.yml
#
# If you need help on this file, feel free to join us on irc or leave a message
# on the forums asking for advice.
#
# IRC: #spigot @ irc.spi.gt
#    (If this means nothing to you, just go to http://www.spigotmc.org/pages/irc/ )
# Forums: http://www.spigotmc.org/
# Bug tracker: http://www.spigotmc.org/go/bugs

command-block-overrides:
- '*'
unrestricted-advancements: false
aliases:
  icanhasbukkit:
  - version $1-
  gamemode:
  - []

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