Fatal PHP 7.4 error

Fatal PHP 7.4 error in my logs.
Any ideas?

[12-Aug-2021 18:03:28 America/Los_Angeles] PHP Fatal error: Uncaught Error: Call to a member function get_sku() on bool in /home/public_html/wp-content/plugins/justuno/includes/integrations/JustWooCommerce.php:439
Stack trace:
#0 /home/thebrobasket/public_html/wp-content/plugins/justuno/includes/JustRESTManager.php(106): Integrations\JustWooCommerce->getConversionTrackingCodes()
#1 /home/public_html/wp-content/plugins/justuno/includes/Frontend.php(25): Integrations\JustRESTManager->getConversionTrackingCodes()
#2 /home/public_html/wp-includes/class-wp-hook.php(292): justuno_place_script(”)
#3 /home/public_html/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array)
#4 /home/public_html/wp-includes/plugin.php(484): WP_Hook->do_action(Array)
#5 /home/public_html/wp-includes/general-template.php(3009): do_action(‘wp_head’)
#6 /home/public_html/wp-content/themes/brochild/header.php(33): wp_head()
#7 /home/public_html/wp-includes/template.php(730): requi in /home/public_html/wp-content/plugins/justuno/includes/integrations/JustWooCommerce.php on line 439