Do you mean that you have added folders to
www.successinyourslippers.com ??
Addon domains have to be a paid domain name and would be added to the public_html folder.
It looks as if you have added folders to the domain. This is perfectly ok.
I think all you have to do to fix the problem is to publish an index page to the ppl folder. The index page can be identical to the ppl page. Then you can delete the ppl page.
Your page titles should be descriptive of the page content and not a repetition of the URL.
The title of your ppl/soon to be index page could be simply "Prepaid Legal" (no quotes)