Error Upon Creating Membership Plan / Buddypress

Getting the error -

Warning: printf(): Too few arguments in /home/socialbarks/public_html/wp-content/plugins/membership/app/helper/class-ms-helper-html.php on line 93

Whenever I edit a membership details for a specific plan. You can reproduce this error by clicking on the link below.

http://socialbarks.com/wp-admin/admin.php?page=membership2&step=edit&tab=upgrade&membership_id=3188