Fatal error: Uncaught Error: Call to undefined function plugin_dir_path() in /home/handllu1/public_html/redboys/wp-content/plugins/simple-membership/lib/paypal/class-swpm-paypal-request-api.php:5 Stack trace: #0 {main} thrown in /home/handllu1/public_html/redboys/wp-content/plugins/simple-membership/lib/paypal/class-swpm-paypal-request-api.php on line 5