Uncaught error




TypeError (0x0)
strtotime() expects parameter 2 to be int, null given

strtotime
/var/www/gkc/httpdocs/wp-content/themes/gerritkomrijcollege/template-pages/calendar-archive.php on line 18

{closure}
/var/www/gkc/httpdocs/wp-content/themes/gerritkomrijcollege/template-pages/calendar-archive.php on line 18

array_filter
/var/www/gkc/httpdocs/wp-content/themes/gerritkomrijcollege/GerritKomrijCollege/OutlookCalendar/OutlookCalendar.php on line 62

GerritKomrijCollege\OutlookCalendar\OutlookCalendar::getEventsFiltered
/var/www/gkc/httpdocs/wp-content/themes/gerritkomrijcollege/GerritKomrijCollege/OutlookCalendar/OutlookCalendar.php on line 69

GerritKomrijCollege\OutlookCalendar\OutlookCalendar::getEventsGroupedFiltererd
/var/www/gkc/httpdocs/wp-content/themes/gerritkomrijcollege/template-pages/calendar-archive.php on line 19

include
/var/www/gkc/httpdocs/wp-includes/template-loader.php on line 106

require_once
/var/www/gkc/httpdocs/wp-blog-header.php on line 19

require
/var/www/gkc/httpdocs/index.php on line 17