[Chat Format Skript not sure]

so basically I'm new to using skript, and I've been wondering how i could fix the problem of this. For example, I would like 5 ranks to have chat format, but I would always get an error. How can I fix this? Here's my code. I'm also using Lucky Perms to do this.
 

on chat:
  if player has permission "group.vip"
   set the chat format to "&l&a[Vip]" &a%player%: &f%message%
  if player has permission "group.mod":
     set the chat format to "&l&2[Mod] &2%player%: &f%message%"
  else:
   set the chat format to "&7%player%: %message%"
  if player has permission "group.admin":
   set the chat format to "&l&4[Admin] &4%player%: &f%message%"
  if name of player is "Player1":
     set the chat format to "&l&4[Owner] &l%player%: &f%message%"