<?php
//Hide Webpushr subscription bell from admin panel*
function hide_webpushr_bell(){
?><style>div#webpushr-prompt-wrapper{display:none!important;}</style><?php
}
add_action('admin_head', 'hide_webpushr_bell');
?>
In the previous question you received a reply with this code. I add Php opening and closing tags
https://ww.wp.xz.cn/support/topic/bells-in-admin/
https://forum.webpushr.com/t/remove-subscription-bell-from-from-wordpress-dashboard/202/6
So far it was good, recently it has gone bad. I tried it, no one touched the product and sent the letter that it was in stock.