Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/shineqat/public_html/wp-content/plugins/woocommerce-quickbooks/notifier/sod-plugin-update-notifier.php:12 Stack trace: #0 /home/shineqat/public_html/wp-content/plugins/woocommerce-quickbooks/notifier/sod-plugin-update-notifier.php(146): SOD_Plugin_Notifier->__construct() #1 {main} thrown in /home/shineqat/public_html/wp-content/plugins/woocommerce-quickbooks/notifier/sod-plugin-update-notifier.php on line 12