database error on Edit Members

I'm getting the following errors on the plugin when trying to add members to a subscription.

WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1]
UPDATE wp_m_membership_levels SET level_count = '0' WHERE

Note that the action was successful on every attempt and I'm using wordpress 3.0.1 in debugging mode.