Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /var/home/greenonion_services/www/wp-content/plugins/timeline-widget-addon-for-elementor/timeline-widget-addon-for-elementor.php:86
Stack trace:
#0 /var/home/greenonion_services/www/wp-content/plugins/timeline-widget-addon-for-elementor/timeline-widget-addon-for-elementor.php(76): Timeline_Widget_Addon->cpfm_load_file()
#1 /var/home/greenonion_services/www/wp-content/plugins/timeline-widget-addon-for-elementor/timeline-widget-addon-for-elementor.php(58): Timeline_Widget_Addon->__construct()
#2 /var/home/greenonion_services/www/wp-content/plugins/timeline-widget-addon-for-elementor/timeline-widget-addon-for-elementor.php(261): Timeline_Widget_Addon::get_instance()
#3 /var/home/greenonion_services/www/wp-content/plugins/timeline-widget-addon-for-elementor/timeline-widget-addon-for-elementor.php(264): Timeline_Widget_Addon()
#4 /var/home/greenonion_services/www/wp-settings.php(476): include_once('/var/home/green...')
#5 /var/home/greenonion_services/www/wp-config.php(112): require_once('/var/home/green...')
#6 /var/home/greenonion_services/www/wp-load.php(50): require_once('/var/home/green...')
#7 /var/home/greenonion_services/www/wp-blog-header.php(13): require_once('/var/home/green...')
#8 /var/home/greenonion_services/www/index.php(17): require('/var/home/green...')
#9 {main}
thrown in /var/home/greenonion_services/www/wp-content/plugins/timeline-widget-addon-for-elementor/timeline-widget-addon-for-elementor.php on line 86