@ss0530,
Are you certain that you’re not logged in as your admin user? LifterLMS 3.7 just released an update that allows admins to bypass all restrictions for easier editing.
Take a look at the feature info here: https://lifterlms.com/docs/lifterlms-preview-management/
This is a hard issue to solve without some more information, can you please gather the information we ask for in the sticky and reply back so I can help further.
Thanks,