Page/Threads throws PDOException when running without comment.module

When I click the Page/Threads tab I get a lot of Notices for undefined variables (usually for navigation, header, highlighted, bottom, footer, etc in include()) but this might be something to do with my theme. The REALLY juicy part is the PDOException, which gives the following message:

PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'marriot2_afrotc.comment' doesn't exist: SELECT c.* FROM {comment} c WHERE (c.nid IN (SELECT s.value AS value FROM {subscriptions} s WHERE (s.module = :db_condition_placeholder_0) AND (s.field = :db_condition_placeholder_1) AND (s.recipient_uid = :db_condition_placeholder_2) )) AND (c.uid = :db_condition_placeholder_3) GROUP BY c.nid; Array ( [:db_condition_placeholder_0] => node [:db_condition_placeholder_1] => nid [:db_condition_placeholder_2] => 1 [:db_condition_placeholder_3] => 1 ) in _subscriptions_content_node_form() (line 180 of /home7/marriot2/public_html/afrotc/sites/all/modules/subscriptions/subscriptions_content.admin.inc).

I don't have comments enabled. It's not vital for me, but looks like it should check for comments table before it does its magic.