Hey guys i need help ... i have plugin called Multiverse-Core .. everytime i log on to my server it have [world] prefix.. i tried to fix it on config but nothing happened i also tried stopping server but its not working also plss help me !! this is very annoying :pinch: :wacko: :wacko: 
My multiverse config :
Code
multiverse-configuration:
==: com.onarandombox.MultiverseCore.MultiverseCoreConfiguration
enforceaccess: 'false'
prefixchat: 'false'
prefixchatformat: '[%world%]%chat%'
useasyncchat: 'true'
teleportintercept: 'true'
firstspawnoverride: 'true'
displaypermerrors: 'true'
globaldebug: '0'
silentstart: 'false'
messagecooldown: '5000'
version: '2.9'
firstspawnworld: world
teleportcooldown: '1000'
defaultportalsearch: 'false'
portalsearchradius: '128'