Localization service doesn’t work

Hi, as you can see, if you log in to this page, the plugin is not able to identify the country based on the IP, therefore, the flag and country code are greyed out. Also, I am getting the following error from the DEBUG

Notice: WP_Scripts::localize was called incorrectly. The $l10n parameter must be an array. To pass arbitrary data to scripts, use the wp_add_inline_script() function instead. Please see Debugging in WordPress for more information. (This message was added in version 5.7.0.) in /home/tradingdominance/public_html/wp-includes/functions.php on line 5535

The page I need help with: [log in to see the link]