I upgraded to the latest version of the events calendar and events calendar pro, and our tag archive pages broke. We are seeing errors like this:
\n[Wed Sep 23 20:08:22.895805 2015] [:error] [pid 8866] [client 68.180.230.87:35435] WordPress database error Duplicate column name ‘post_date’ for query \\n\\t\\t\\t\\t\\tSELECT\\n\\t\\t\\t\\t\\t\\tSQL_CALC_FOUND_ROWS \\n\\t\\t\\t\\t\\tFROM (\\n\\t\\t\\t\\t\\t\\tSELECT DISTINCT wp_27_posts., IF (wp_27_posts.post_type = ‘tribe_events’, wp_27_postmeta.meta_value, wp_27_posts.post_date) AS post_date FROM wp_27_posts INNER JOIN wp_27_term_relationships ON (wp_27_posts.ID = wp_27_term_relationships.object_id) LEFT JOIN wp_27_postmeta as wp_27_postmeta on wp_27_posts.ID = wp_27_postmeta.post_id AND wp_27_postmeta.meta_key = ‘_EventStartDate’ WHERE 1=1 AND ( \\n wp_27_term_relationships.term_taxonomy_id IN (514)\\n) AND wp_27_posts.post_type IN (‘post’, ‘page’, ‘tribe_events’) AND (wp_27_posts.post_status = ‘publish’) ORDER BY post_date DESC \\n\\t\\t\\t\\t\\t) a\\n\\t\\t\\t\\t\\tGROUP BY IF( post_parent = 0, ID, post_parent )\\n\\t\\t\\t\\t\\tORDER BY EventStartDate ASC\\n\\t\\t\\t\\t\\tLIMIT 0, 14\\n\\t\\t\\t\\t \/* From [ww2.kqed.org\/stateofhealth\/tag\/emergency-medicine\/] in [\/nas\/wp\/www\/cluster-40276\/ww2\/index.php:17] *\/ made by require(‘wp-blog-header.php’), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts<\/p>\n","protected":false},"template":"","class_list":["post-1008053","topic","type-topic","status-closed","hentry"],"yoast_head":"\n