Gravity Forms PayPal Add-On was updated to version 1.7, from version 1.6. Changelog:

• Fixed issue where submission still went to PayPal regardless of the feed being inactive.
• Fixed issue where changing the form on an existing feed did not save the change.
• Fixed error on entry info box (entry detail page) when editing entries.
• Fixed issue that ignored discounts when total (product + discount) added up to zero.
• Fixed debug notice messages.