I did everything above and it still wouldn’t let me add photos. However, the Health Check found this:
The file editor on this site has not been disabled. Right now, an admin user can edit plugins and themes from within the WordPress admin. It is recommended to disable file editing within the WordPress dashboard. The recommended solution is using a security plugin, such as iThemes Security, that has features to disable the file editor. Alternatively, you can edit the wp-config file as shown here.
That page doesn’t work. Do you know how to address this? Thank you!