Fehlermeldung

• Notice: Undefined index: groupby_times in template_preprocess_calendar_day() (Zeile 272 von /var/www/vhosts/live/htdocs/sites/all/modules/contrib/calendar/theme/theme.inc).
• Notice: Undefined index: groupby_times in template_preprocess_calendar_day() (Zeile 276 von /var/www/vhosts/live/htdocs/sites/all/modules/contrib/calendar/theme/theme.inc).