Fatal error: Uncaught Error: Call to a member function format() on bool in /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/amr-ical-events-list/includes/amr-rrule.php:563
Stack trace:
#0 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/amr-ical-events-list/includes/amr-rrule.php(842): amr_create_date_from_parts(Array, Object(DateTimeZone))
#1 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/amr-ical-events-list/includes/amr-ical-events-list-main.php(1149): amr_process_RRULE(NULL, Object(DateTime), Object(DateTime), Object(DateTime), 100)
#2 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/amr-ical-events-list/includes/amr-ical-events-list-main.php(1331): amr_repeat_anevent(Array, Object(DateTime), Object(DateTime), 100)
#3 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/amr-ical-events-list/includes/amr-ical-events-list-main.php(1455): amr_generate_repeats(Array, Object(DateTime), Object(DateTime), 100)
#4 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/amr-ical-events-list/includes/amr-ical-events-list-main.php(1696): amr_process_icalevents(Array, Object(DateTime), Object(DateTime), 100)
#5 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/amr-ical-events-list/includes/amr-ical-events-list-main.php(2218): amr_process_icalspec(Array, Object(DateTime), Object(DateTime), 100)
#6 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-includes/shortcodes.php(433): amr_do_ical_shortcode(Array, '', 'ical')
#7 [internal function]: do_shortcode_tag(Array)
#8 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-includes/shortcodes.php(273): preg_replace_callback('/\\[(\\[?)(ical)(...', 'do_shortcode_ta...', '[ical events=5 ...')
#9 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-includes/class-wp-hook.php(326): do_shortcode('[ical events=5 ...')
#10 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters('[ical events=5 ...', Array)
#11 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-includes/widgets/class-wp-widget-text.php(298): apply_filters('widget_text_con...', '[ical events=5 ...', Array, Object(WP_Widget_Text))
#12 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/siteorigin-panels/inc/renderer.php(846): WP_Widget_Text->widget(Array, Array)
#13 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/siteorigin-panels/inc/renderer.php(1218): SiteOrigin_Panels_Renderer->the_widget(Array, Array, 1, 1, 1, false, true, 474, '')
#14 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/siteorigin-panels/inc/renderer.php(1185): SiteOrigin_Panels_Renderer->render_widget(474, 1, 1, 1, Array, true)
#15 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/siteorigin-panels/inc/renderer.php(1094): SiteOrigin_Panels_Renderer->render_cell(474, 1, 1, Array, Array, Array)
#16 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/siteorigin-panels/inc/renderer.php(553): SiteOrigin_Panels_Renderer->render_row(474, 1, Array, Array)
#17 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-content/plugins/siteorigin-panels/siteorigin-panels.php(342): SiteOrigin_Panels_Renderer->render(474, false)
#18 /home/httpd/vhosts/pda.ch/sites/pdazuerich_ch/www/httpdocs/wp-includes/class-wp-hook.php(324): SiteOrigin_Panels->generate_post_content('