Notice: Undefined variable: instance in C:\xampp\htdocs\wp-content\plugins\wp-timelines\inc\siteorigin\widgets\timelines\tpl\tl-shortcode.php on line 6

Fatal error: Uncaught Error: Call to undefined function do_shortcode() in C:\xampp\htdocs\wp-content\plugins\wp-timelines\inc\siteorigin\widgets\timelines\tpl\tl-shortcode.php:34 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\wp-timelines\inc\siteorigin\widgets\timelines\tpl\tl-shortcode.php on line 34