Posted a reply to not php 8.0 ready, on the site WordPress.org Forums: Similar issue moving from PHP 7.4 to 8.1 Warning: Undefined array key “phase” in /homepages/35/d720475772/htdocs/clickandbuilds/Edit/wp-content/plugins/insert-php/includes/shortcodes/shortcode-insert-php.php(25)…
