How do I remove the double prefix, I am using essentials chat is there a specific line I need to enable or disable :3

This isn't a LuckPerms issue but you have most likely set {PREFIX}{DISPLAYNAME} in your Essentials chat config.

Simply remove {PREFIX} and it should work. The {DISPLAYNAME} adds the prefix and suffix to the user's name.

If you don't want that functionality, you can turn it off with a setting earlier on in the config, something like add-prefix-suffix.