The problem is that for some reason it executes into the if isnt set and still haven't found a way to fix it, here is my code, helping would be appreciated :D

command /party :
  aliases: /p
  usage: /party Create /party Chat
  trigger:

    if arg-1 is "Create":
      set {partylist::%player's uuid%} to random integer between 0 and 999999999999 #note this one isnt finished so you dont have to touch it
      send "&eYour party was created!"
      set {_plrparty} to true

    if arg-1 is "Chat":
      if {_plrparty} is not set:
        set {_plrparty} to false
        send "&4You are not in a party"
      else if {_plrparty} = true:
        send "&7You are now in party chat"
      else:
        send "&4You are not in a party"
        send "else"