Is there something in which anyone can help me? I got this code from theme-functions.php
// get all the custom field labels so we can match the field_name up against the post_meta keys
$sql = $wpdb->prepare("SELECT field_label, field_name, field_type FROM ". $wpdb->prefix . "cp_ad_fields");
warning like this
Warning: Missing argument 2 for wpdb::prepare(), called in C:\xampp\htdocs\classi\wordpress\wp-content\themes\ClassiPress\includes\theme-functions.php on line 314 and defined in C:\xampp\htdocs\classi\wordpress\wp-includes\wp-db.php on line 990
What to change in this?