Fatal error: Uncaught Error: Call to undefined function wp_doing_ajax() in /home/customer/www/mexytech.com/public_html/wp-content/plugins/wp-live-chat-support/includes/helpers/utils_helper.php:472 Stack trace: #0 /home/customer/www/mexytech.com/public_html/wp-content/plugins/wp-live-chat-support/modules/chat_client/chat_client_page.php(19): TCXUtilsHelper::wplc_show_chat_client() #1 /home/customer/www/mexytech.com/public_html/wp-includes/plugin.php(525): wplc_add_chat_client_page_resources('') #2 /home/customer/www/mexytech.com/public_html/wp-includes/script-loader.php(1046): do_action('wp_enqueue_scri...') #3 /home/customer/www/mexytech.com/public_html/wp-includes/plugin.php(525): wp_enqueue_scripts('') #4 /home/customer/www/mexytech.com/public_html/wp-includes/general-template.php(2434): do_action('wp_head') #5 /home/customer/www/mexytech.com/public_html/wp-content/themes/rttheme18/header.php(8): wp_head() #6 /home/customer/www/mexytech.com/public_html/wp-includes/template.php(562): require_once('/home/customer/...') #7 in /home/customer/www/mexytech.com/public_html/wp-content/plugins/wp-live-chat-support/includes/helpers/utils_helper.php on line 472