php - Understanding and tracing Apache error: Wordpress database -

I have a hard time understanding what this recurring entry is saying in my Apache error log. It is at irregular intervals for at least 1 / hour in 1 minute for a couple.

  select wp_em_events include wp_em_events.post_id where wp_em_locations.location_id = wp_em_events.location_id Left wp_em_locations ( `recurrence` are! = 1 or` recurrence` zero) and (event_start_date & gt; = Cast (in as 03/16/2015 "date) or (event_end_date & gt ;! = cast (" as 03/16/2015 "date) and event_end_date = '0000-00-00' and event_end_date zero) ) and (array) and ( `event_status` = 1) and (` event_private` = 0) by event_start_date ASC is not required 50 OFFSET 0 gROUP bY wp_em_events.post_id order LIMIT ( 'WP- blog header. Php '), WP, WP- & gt; Main, WP- & gt; Query_posts, WP_Query-> Query, WP_Query-> Get_posts, wp_Query-> parse_query, do_action_ref_array, call_user_func_array, em_ical_item, em_locate_template, include ( '/ plugins / get events manager / templates / templates / ical.php'), EM_Events ::  

The value < / P>

I have N. OT faced any front faces in front of this error. Although I believe this is affecting MySQL performance, where should I start?

After

I can not say that I have come across SQL queries that are being produced in Apache. Log files like before, but I will first disable the plug-in to see if the error output stops and if the display increases.

Then I'll start to see the Events Manager Forum articles that no one else had a similar problem I had a quick look but could not see anything, the link may also post on forums, Because there you can get some better support.

If the plug-in does not help digging in code and should increase the part of the search for that specific SQL query, the error of that code is entering the log and since then you will get the error To debug and to understand why this is happening, I am afraid without seeing that code and can not help much.