Chris Montgomery

Sure thing! I’m glad to have helped out.

No, that’s not it. I found a fix though…

I searched for that error message I got and I found this support thread for a different plugin.

The problem is that the plugin requires a file called “settings.php” in the plugin folder. I simply renamed settings.php and changed require('settings.php'); to require('wp-retina-2x-settings.php');

All is good.

The only email is sent to the address my site is registered to, and this address isn’t used by any of the users selected.

I’m having this same issue. Selected each person individually and deactivated all plugins with no luck.