I’m running PHP 5.3.3.
I’ve disabled all other plugins, reverted to the default WordPress theme, and re-downloaded and reinstalled the plugin. This error still occurs on both Twenty Twelve and Twenty Thirteen with no other plugins activated. Any other suggestions for things I can check?
I also get this error immediately after activating the plugin when trying to load the site. Nothing loads and in order to access the WordPress site or the site’s admin control panel I have to delete the subscribr folder from the plugins directory. I had to enable WP_DEBUG in wp-config.php in order to see the error.