when i sue Divi builder to style the page on the top there is this message -
Warning: Invalid argument supplied for foreach() in /home/customer/www/drsajjanacademy.com/public_html/wp-content/plugins/divi-builder/includes/builder/feature/woocommerce-modules.php on line 949
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why is it showing? what action to be taken?
This is just a warning which will not affect anything related to theme. If it is appearing in frontend on your website so it means the debug message is ON. Conatct your webhost and ask him to put WP_Debug OFF in wp-config.php file