[07-Sep-2018 15:18:46 UTC] PHP Fatal error: Uncaught Error: Call to undefined function add_action() in /home/arthsutr/public_html/wp-content/themes/investment/widgets/calendar.php:8 Stack trace: #0 {main} thrown in /home/arthsutr/public_html/wp-content/themes/investment/widgets/calendar.php on line 8 [07-Sep-2018 15:18:48 UTC] PHP Fatal error: Uncaught Error: Call to undefined function add_action() in /home/arthsutr/public_html/wp-content/themes/investment/widgets/calendar.php:8 Stack trace: #0 {main} thrown in /home/arthsutr/public_html/wp-content/themes/investment/widgets/calendar.php on line 8