Fatal error: Uncaught Error: Call to undefined function tribe_is_event() in /var/www/vhosts/ga-ro.ch/httpdocs/wp-content/plugins/registrations-for-the-events-calendar/inc/form/form-functions.php:464
Stack trace:
#0 /var/www/vhosts/ga-ro.ch/httpdocs/wp-includes/class-wp-hook.php(324): rtec_use_footer_to_add_form()
#1 /var/www/vhosts/ga-ro.ch/httpdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#2 /var/www/vhosts/ga-ro.ch/httpdocs/wp-includes/plugin.php(517): WP_Hook->do_action()
#3 /var/www/vhosts/ga-ro.ch/httpdocs/wp-includes/general-template.php(3080): do_action()
#4 /var/www/vhosts/ga-ro.ch/httpdocs/wp-content/themes/Divi/footer.php(67): wp_footer()
#5 /var/www/vhosts/ga-ro.ch/httpdocs/wp-includes/template.php(810): require_once('...')
#6 /var/www/vhosts/ga-ro.ch/httpdocs/wp-includes/template.php(745): load_template()
#7 /var/www/vhosts/ga-ro.ch/httpdocs/wp-includes/general-template.php(92): locate_template()
#8 /var/www/vhosts/ga-ro.ch/httpdocs/wp-content/plugins/woocommerce/templates/archive-product.php(97): get_footer()
#9 /var/www/vhosts/ga-ro.ch/httpdocs/wp-content/plugins/woocommerce/includes/wc-core-functions.php(346): include('...')
#10 /var/www/vhosts/ga-ro.ch/httpdocs/wp-content/plugins/woocommerce/templates/taxonomy-product-cat.php(22): wc_get_template()
#11 /var/www/vhosts/ga-ro.ch/httpdocs/wp-includes/template-loader.php(106): include('...')
#12 /var/www/vhosts/ga-ro.ch/httpdocs/wp-blog-header.php(19): require_once('...')
#13 /var/www/vhosts/ga-ro.ch/httpdocs/index.php(17): require('...')
#14 {main}
thrown in /var/www/vhosts/ga-ro.ch/httpdocs/wp-content/plugins/registrations-for-the-events-calendar/inc/form/form-functions.php on line 464