Hi Guys
Great plugin. Still looking forward to "Manual Recurring Billing".
Currently however I just updated to Wordpress 3.8, and imminently started to receive 'File does not exist' errors for 'wp-invoice/core/css/images/sort_both.png' in my apache error log each time I click on the dashboard link to the WP-Invoice - Web Invoice and Billing plugin.
wp-invoice/core/css/images/sort_both.png
