Error since update 7 hours ago

I got an email saying Popup maker is broken as of the upgrade 7 hours ago. It is no longer popping up.

Here is the email.

Howdy!

Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with this automated email.

In this case, WordPress caught an error with one of your plugins, Popup Maker.

First, visit your website (https://livinginbeauty.net/) and check for any visible issues. Next, visit the page where the error was caught (https://livinginbeauty.net/wp-admin/edit.php?post_status=draft&post_type=post) and check for any visible issues.

Please contact your host for assistance with investigating this issue further.

If your site appears broken and you can't access your dashboard normally, WordPress now has a special "recovery mode". This lets you safely login to your dashboard and investigate further.

https://livinginbeauty.net/wp-login.php?action=enter_recovery_mode&rm_token=bndUZ0O4xQ5BDjLLJQs2Lw&rm_key=hcH9GDjZGdMZ1uHAf9RF9r

To keep your site safe, this link will expire in 1 day. Don't worry about that, though: a new link will be emailed to you if the error occurs again after it expires.

When seeking help with this issue, you may be asked for some of the following information:
WordPress version 6.1.1
Active theme: Shoreditch (version 1.2.9-wpcom)
Current plugin: Popup Maker (version 1.17.0)
PHP version 8.0.26

Error Details
=============
An error of type E_ERROR was caused in line 69 of the file /srv/htdocs/wp-content/plugins/popup-maker/classes/Utils/Alerts.php. Error message: Uncaught Error: Class "PUM_Utils_I10n" not found in /srv/htdocs/wp-content/plugins/popup-maker/classes/Utils/Alerts.php:69
Stack trace:
#0 /wordpress/core/6.1.1/wp-includes/class-wp-hook.php(308): PUM_Utils_Alerts::translation_request(Array)
#1 /wordpress/core/6.1.1/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array)
#2 /srv/htdocs/wp-content/plugins/popup-maker/classes/Utils/Alerts.php(480): apply_filters('pum_alert_list', Array)
#3 /srv/htdocs/wp-content/plugins/popup-maker/classes/Utils/Alerts.php(34): PUM_Utils_Alerts::get_alerts()
#4 /srv/htdocs/wp-content/plugins/popup-maker/classes/Utils/Alerts.php(42): PUM_Utils_Alerts::alert_count()
#5 /wordpress/core/6.1.1/wp-includes/class-wp-hook.php(308): PUM_Utils_Alerts::append_alert_count('')
#6 /wordpress/core/6.1.1/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#7 /wordpress/core/6.1.1/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#8 /wordpress/core/6.1.1/wp-admin/includes/menu.php(155): do_action('admin_menu', '')
#9 /wordpress/core/6.1.1/wp-admin/menu.php(428): require_once('/wordpress/core...')
#10 /wordpress/core/6.1.1/wp-admin/admin.php(158): require('/wordpress/core...')
#11 /wordpress/core/6.1.1/wp-admin/edit.php(10): require_once('/wordpress/core...')
#12 {main}
 thrown