Hey, i created the track "Helper" and appended the group "Helper" and "Default" to it so the person gets the perms from both and prefix from helper, but when I try and promote myself to the track it just gives me this error "[LP] The end of track helper was reached. Unable to promote FazzyPlayzMc."
Could anyone give me why this happens and how to fix it?

Note that tracks do not imply inheritance automatically.

See: https://github.com/lucko/LuckPerms/wiki/Tracks

Commands for editing parent groups are described here: https://github.com/lucko/LuckPerms/wiki/Command-Usage:-Parent#lp-usergroup-usergroup-parent-set-group-context