Fatal error: Uncaught Error: Call to undefined function add_option() in C:\xampp\htdocs\wordpress\wp-content\pluginsBK\vote-it-up\voteinstall.php:23 Stack trace: #0 C:\xampp\htdocs\wordpress\wp-content\pluginsBK\vote-it-up\voteitup.php(18): VoteItUp_InstallOptions() #1 {main} thrown in C:\xampp\htdocs\wordpress\wp-content\pluginsBK\vote-it-up\voteinstall.php on line 23