Fatal error: Uncaught Error: Call to undefined function wp_is_json_request() in C:\xampp\htdocs\wp-includes\functions.php:2995 Stack trace: #0 C:\xampp\htdocs\wp-includes\functions.php(4379): wp_die('<h1>Error estab...', 'Database Error') #1 C:\xampp\htdocs\wp-includes\load.php(422): dead_db() #2 C:\xampp\htdocs\wp-settings.php(111): wp_set_wpdb_vars() #3 C:\xampp\htdocs\wp-config.php(93): require_once('C:\\xampp\\htdocs...') #4 C:\xampp\htdocs\wp-load.php(37): require_once('C:\\xampp\\htdocs...') #5 C:\xampp\htdocs\wp-blog-header.php(13): require_once('C:\\xampp\\htdocs...') #6 C:\xampp\htdocs\index.php(135): require('C:\\xampp\\htdocs...') #7 {main} thrown in C:\xampp\htdocs\wp-includes\functions.php on line 2995