Server errors reported with WP Smush

Got the following error: [Sun Jan 15 23:08:02.229148 2017] [:error] [pid 11842] [client 104.197.167.248:28029] KILLED QUERY (38977 characters long generated in /nas/content/live/eatjxn/wp-content/plugins/wp-smush-pro/lib/class-wp-smush-stats.php:75): SELECT post_id, meta_key, meta_value FROM wp_postmeta WHERE post_id IN 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