All contact information don't display from author page due to conflict plugin
I remarked that just the web site address, Twitter,Facebook that appear on the author page.
After turning off all the plugins on my platform, I identified that the issue is caused by the plugin Advanced Custom Fields for ClassiPress. When I deactivate this plugin, your plugin work good.
I will contact the owner of the pluging Advanced Custom Fields for ClassiPress, then let you know the follow.