If you ran into a problem like you have changed the secure admin URL back to non secure URL and you forgot to change the
Follow the steps
- Open your database admin tool such as PhpMyAdmin
- Find table “core_config_data”
- Search for the columns in path field “web/secure/use_in_frontend” and “web/secure/use_in_adminhtml”
- Set both values to 0, then clear cache and enjoy browsing your website.