Yours relevent questions answer.
Notice: Undefined index: blog_grid_column in /www/wordpressairrobecom_140/public/wp-content/themes/mercy/templates/blog/post-format.php on line 82
Notice: Function 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 /www/wordpressairrobecom_140/public/wp-includes/functions.php on line 5831