Warning: Use of undefined constant CF7_ISMS_DB - assumed 'CF7_ISMS_DB' (this will throw an Error in a future version of PHP) in C:\xampp\htdocs\wp-content\plugins\cf7-international-sms-integration\includes\class-sms-logger.php on line 18

Fatal error: Uncaught Error: Call to undefined function get_option() in C:\xampp\htdocs\wp-content\plugins\cf7-international-sms-integration\includes\class-sms-logger.php:24 Stack trace: #0 C:\xampp\htdocs\wp-content\plugins\cf7-international-sms-integration\includes\class-sms-logger.php(19): CF7_International_SMS_Log_Handler->get_logs() #1 C:\xampp\htdocs\wp-content\plugins\cf7-international-sms-integration\includes\class-sms-logger.php(9): CF7_International_SMS_Log_Handler->__construct() #2 C:\xampp\htdocs\wp-content\plugins\cf7-international-sms-integration\includes\class-sms-logger.php(97): CF7_International_SMS_Log_Handler::get_instance() #3 {main} thrown in C:\xampp\htdocs\wp-content\plugins\cf7-international-sms-integration\includes\class-sms-logger.php on line 24