Error after latest wp update and theme update.

Hi, 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.

Even though my site appears fine front and admin side i wondered if there is an issue with this notification?

Many thanks

wp-admin/admin-ajax.php)

An error of type E_ERROR was caused in line 48 of the file /var/sites/g/mytheme.com/public_html/wp-content/themes/vantage/inc/settings/settings.php. Error message: Uncaught Error: Class ‘SiteOrigin_Settings_Upgrade’ not found in /var/sites/g/mytheme.com/public_html/wp-content/themes/vantage/inc/settings/settings.php:48
Stack trace:
#0 /var/sites/g/mytheme.com/public_html/wp-content/themes/vantage/inc/settings/settings.php(59): SiteOrigin_Settings->__construct()
#1 /var/sites/g/mytheme.com/public_html/wp-content/themes/vantage/inc/settings/settings.php(858): SiteOrigin_Settings::single()
#2 /var/sites/g/mytheme.com/public_html/wp-content/themes/vantage/functions.php(15): include(‘/var/sites/g/gr…’)
#3 /var/sites/g/mytheme.com/public_html/wp-settings.php(497): include(‘/var/sites/g/gr…’)
#4 /var/sites/g/mytheme.com/public_html/wp-config.php(101): require_once(‘/var/sites/g/gr…’)
#5 /var/sites/g/mytheme.com/public_html/wp-load.php(37): require_once(‘/var/sites/g/gr…’)
#6 /var/sites/g/mytheme.com/public_html/wp-admin/admin-ajax.php(22): require_once(‘/var/sites/g/gr…’)
#7 {main}
thrown