Fix
# always backup your site db and files beforehand
tar -czvf /path/to/backup-example-com.tar.gz /path/to/web/root
# move the elementor plugin directory away
mv /var/sites/example.com/web/wp-content/plugins/elementor ~/elementor-backup
# login to example.com/wp-admin and click the re-install elementor button on the alert where it complains elementor is missing
Click the "Install Now" button to replace the missing Elementor plugin
Recent Error Thrown by Elementor Upgrade - June 2026
[22-Jun-2026 21:46:04 UTC] PHP Fatal error: Uncaught Error: Class "ElementorOne\Admin\Components\EditorUpdateNotification" not found in/var/sites/example.com/web/wp-content/plugins/elementor/vendor/elementor/wp-one-package/src/Loader.php:74
Stack trace:
#0/var/sites/example.com/web/wp-content/plugins/elementor/vendor/elementor/wp-one-package/src/Loader.php(30): ElementorOne\Loader::initialize_components()
#1/var/sites/example.com/web/wp-content/plugins/elementor/vendor/elementor/wp-one-package/runner.php(52): ElementorOne\Loader::init()
#2 [internal function]: elementor_one_initialize_1_dot_0_dot_63()
#3/var/sites/example.com/web/wp-content/plugins/elementor/vendor/elementor/wp-one-package/src/Versions.php(170): call_user_func()
#4/var/sites/example.com/web/wp-includes/class-wp-hook.php(339): ElementorOne\Versions::initialize_latest_version()
#5/var/sites/example.com/web/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#6/var/sites/example.com/web/wp-includes/plugin.php(522): WP_Hook->do_action()
#7/var/sites/example.com/web/wp-settings.php(622): do_action()
#8/var/sites/example.com/web/wp-config.php(97): require_once('...')
#9/var/sites/example.com/web/wp-load.php(50): require_once('...')
#10/var/sites/example.com/web/wp-blog-header.php(13): require_once('...')
#11/var/sites/example.com/web/index.php(17): require('...')
#12 {main}
thrown in/var/sites/example.com/web/wp-content/plugins/elementor/vendor/elementor/wp-one-package/src/Loader.php on line 74
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