<pre>
Warning: [mysql error 2006] MySQL server has gone away

SELECT DISTINCT(WEEKDAY(date_creation)) as period,
  COUNT(DISTINCT id) as nb_images FROM piwigo_images
INNER JOIN piwigo_image_category ON id = image_id
WHERE category_id IN (1,2,3,4,5,6,11,29,30,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,50,52,53,54,55,56,57,58,59,60,61,62,63,64,66,67,68,69,70,71,72,73,74,75,76,77,78,80,81,82,83,84,85,86,87,88,91,92,93,95,96,97,98,99,100,101,102,103,104,105,106,109,110,111,112,113,114,115,116,117,118,120,121,122,123,124,125,126,127,128,130,131,132,133,134,135,987,988,990,991,992,993,1013,1016,1017,1018)
     AND WEEK(date_creation, 5)+1=44
  GROUP BY period; in /volume1/web/photo.aronov.su/include/dblayer/functions_mysqli.inc.php on line 847
</pre>
Fatal error: Uncaught Error: Call to a member function fetch_assoc() on bool in /volume1/web/photo.aronov.su/include/dblayer/functions_mysqli.inc.php:895
Stack trace:
#0 /volume1/web/photo.aronov.su/include/calendar_base.class.php(242): query2array('\nSELECT DISTINC...', 'period', 'nb_images')
#1 /volume1/web/photo.aronov.su/include/calendar_weekly.class.php(78): CalendarBase->build_nav_bar(2)
#2 /volume1/web/photo.aronov.su/include/functions_calendar.inc.php(192): CalendarWeekly->generate_category_content()
#3 /volume1/web/photo.aronov.su/include/section_init.inc.php(576): initialize_calendar()
#4 /volume1/web/photo.aronov.su/index.php(12): include('/volume1/web/ph...')
#5 {main}
  thrown in /volume1/web/photo.aronov.su/include/dblayer/functions_mysqli.inc.php on line 895
<pre>
Warning: [mysql error 2006] MySQL server has gone away

REPLACE INTO piwigo_sessions
  (id,data,expiration)
  VALUES('D8492764960685637f76cf6b26bb0279cd48','pwg_device|s:7:\"desktop\";pwg_mobile_theme|b:0;pwg_image_order|i:10;',now())
; in /volume1/web/photo.aronov.su/include/dblayer/functions_mysqli.inc.php on line 847
</pre>