Subscription error

Hi we have an issue where the invoices do not print for subscription renewals, the initial order to take out eh subscription prints but when they renew they do not auto print, however if you go to view the order it then triggers the print. We no have to manually check each day to look for any renewals then view them to get them to print, this makes it difficult as at present we have around 40 subscriptions but it is growing rapidly.

The page I need help with: [log in to see the link]