More log error

Hello! I get a lot of errors in my log, at its two sites.
https://utema.ru/woocommerce-russkij-plagin-internet-magazina-na-wordpress/

[10-Nov-2014 15:59:22 UTC] PHP Warning:  array_fill(): Number of elements must be positive in /home/s/user/utema/public_html/wp-content/plugins/disqus-comment-system/disqus.php on line 294
[10-Nov-2014 15:59:22 UTC] PHP Warning:  implode(): Invalid arguments passed in /home/s/user/utema/public_html/wp-content/plugins/disqus-comment-system/disqus.php on line 294
[10-Nov-2014 15:59:22 UTC] PHP Warning:  Missing argument 2 for wpdb::prepare() in /home/s/user/utema/public_html/wp-includes/wp-db.php on line 1154
[10-Nov-2014 15:59:22 UTC] WordPress database returned an 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 3 in response to a request
        SELECT post_id, meta_value
        FROM gfypab_postmeta
        WHERE meta_key = 'dsq_thread_id' AND meta_value IN ()
    , executed do_action_ref_array, call_user_func_array, dsq_sync_forum, dsq_sync_comments

https://ww.wp.xz.cn/plugins/disqus-comment-system/