It also produces a 404 error when attempting to access
{WordPress root}/wp-admin/admin-ajax.php?action=sodahead_ask
I figured it out though. If your WordPress installation is in a different folder than the root, this error occurs. To correct it, you must manually type the path to your wp-admin folder on your sever within the URL. So if the url in your browser address bar is:
https://yourdomain.com/wp-admin/admin-ajax.php?action=sodahead_ask
Change it to:
https://yourdomain.com/folder-containing-wordpress-install/wp-admin/admin-ajax.php?action=sodahead_ask
Obviously replace “yourdomain.com” and “folder-containing-wordpress-install” with your appropriate website domain and WordPress install folder respectively.
Ultimately, the plugin should not assume the WordPress installation is in the root folder.