Title: Plugin Database errors
Last modified: August 21, 2016

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# Plugin Database errors

 *  [DodoWu](https://wordpress.org/support/users/dodowu/)
 * (@dodowu)
 * [12 years, 3 months ago](https://wordpress.org/support/topic/plugin-database-errors/)
 * Our web hosting (Blue Host) has tracked and checked our website often happen “
   an error occurred while processing this directive” error cause of your plugin
   have database error.
 * Please see the following error log and could you help to resolve this urgent 
   issue? Thank you.
 * ***error_log excerpt***
 * [18-Apr-2014 21:21:24 UTC] PHP Fatal error: Call to a member function has_cap()
   on a non-object in /home/vsviporg/public_html/vantageshanghai/wp-content/plugins/
   alipay/includes/fnc.core.php on line 848
    [18-Apr-2014 21:21:26 UTC] PHP Fatal
   error: Call to a member function has_cap() on a non-object in /home/vsviporg/
   public_html/vantageshanghai/wp-content/plugins/alipay/includes/fnc.core.php on
   line 848 [18-Apr-2014 21:39:27 UTC] WordPress database error Illegal mix of collations
   for operation ‘ IN ‘ for query SELECT target.post_id, sum(target.weight * log(
   968 / least(968, freqs.freq))) as score FROM wp_wp_rp_tags as target, (SELECT
   label, count(1) as freq FROM wp_wp_rp_tags WHERE label IN (‘P_moma’, ‘P_new york’,‘
   P_sound art’, ‘C_艺述’, ‘A_art’, ‘A_alt’, ‘A_div’, ‘A_ap’, ‘A_a’) GROUP BY label)
   as freqs WHERE target.post_id NOT IN (‘15834’) AND
 *  target.label=freqs.label AND
    target.label IN (‘P_moma’, ‘P_new york’, ‘P_sound
   art’, ‘C_艺述’, ‘A_art’, ‘A_alt’, ‘A_div’, ‘A_ap’, ‘A_a’) GROUP BY target.post_id
   ORDER BY score desc, target.post_id desc LIMIT 10; made by require, require_once,
   include, the_content, apply_filters, call_user_func_array, wp_rp_add_related_posts_hook,
   wp_rp_get_related_posts, wp_rp_fetch_posts_and_title, wp_rp_append_posts, call_user_func,
   wp_rp_fetch_related_posts_v2
 * [https://wordpress.org/plugins/alipay/](https://wordpress.org/plugins/alipay/)

The topic ‘Plugin Database errors’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [DodoWu](https://wordpress.org/support/users/dodowu/)
 * Last activity: [12 years, 3 months ago](https://wordpress.org/support/topic/plugin-database-errors/)
 * Status: not resolved