Fatal error: Uncaught Error: Call to undefined function activate_plugin() in /home/technost/r2bapp/wp-content/plugins/ultimate-faqs/Main.php:5 Stack trace: #0 /home/technost/r2bapp/wp-settings.php(391): include_once() #1 /home/technost/r2bapp/wp-config.php(89): require_once('/home/technost/...') #2 /home/technost/r2bapp/wp-load.php(37): require_once('/home/technost/...') #3 /home/technost/r2bapp/wp-blog-header.php(13): require_once('/home/technost/...') #4 /home/technost/r2bapp/index.php(17): require('/home/technost/...') #5 {main} thrown in /home/technost/r2bapp/wp-content/plugins/ultimate-faqs/Main.php on line 5