What can happen in your config file is having a path to a variable that goes through multiple sections.
admins: first-tier: "Kerooker" second-tier: "Mordekaiser" third-tier: "Yesh4"
The name "Kerooker" is from section "first-tier", which is from section "admins". To access the inner paths of our file, we use a simple '.' as a way of saying that we want the next section. So, for us to access "Kerooker", we go: