Fatal error: Uncaught Error: Call to undefined function tec_is_view() in /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-content/plugins/events-calendar-pro/src/functions/template-tags/general.php:403
Stack trace:
#0 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-content/plugins/events-calendar-pro/src/Tribe/Main.php(415): tribe_is_week()
#1 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/class-wp-hook.php(294): Tribe__Events__Pro__Main->reset_page_title('Anstehende Vera...', true)
#2 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/plugin.php(212): WP_Hook->apply_filters('Anstehende Vera...', Array)
#3 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-content/plugins/the-events-calendar/src/Tribe/Views/V2/Template/Title.php(179): apply_filters('tribe_get_event...', 'Anstehende Vera...', true, Object(Tribe__Context))
#4 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-content/plugins/the-events-calendar/src/Tribe/Views/V2/Template/Title.php(246): Tribe\Events\Views\V2\Template\Title->build_title('Stuttgart')
#5 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-content/plugins/the-events-calendar/src/Tribe/Views/V2/Hooks.php(500): Tribe\Events\Views\V2\Template\Title->filter_document_title_parts(Array)
#6 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/class-wp-hook.php(292): Tribe\Events\Views\V2\Hooks->filter_document_title_parts(Array)
#7 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/plugin.php(212): WP_Hook->apply_filters(Array, Array)
#8 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/general-template.php(1237): apply_filters('document_title_...', Array)
#9 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/general-template.php(1261): wp_get_document_title()
#10 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/class-wp-hook.php(292): _wp_render_title_tag('')
#11 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters('', Array)
#12 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/plugin.php(484): WP_Hook->do_action(Array)
#13 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/general-template.php(3009): do_action('wp_head')
#14 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-content/themes/enfold/header.php(87): wp_head()
#15 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/template.php(730): require_once('/is/htdocs/wp12...')
#16 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/template.php(676): load_template('/is/htdocs/wp12...', true, Array)
#17 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#18 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-content/plugins/the-events-calendar/src/views/v2/default-template.php(17): get_header()
#19 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-includes/template-loader.php(106): include('/is/htdocs/wp12...')
#20 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-blog-header.php(19): require_once('/is/htdocs/wp12...')
#21 /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/index.php(17): require('/is/htdocs/wp12...')
#22 {main}
thrown in /is/htdocs/wp12699106_9T7Z8LXJBY/www/startup-heidelberg/wordpress/wp-content/plugins/events-calendar-pro/src/functions/template-tags/general.php on line 403