We upgraded everything and was able to solve the issue with the warning by changing php version to 7.2 (from 7.3.) but when we updated woocommerce we have this error:
Fatal error: Uncaught Error: Class 'Automattic\Jetpack\Constants' not found in /home/busin544/public_html/astoria-academy.com/wp-content/plugins/woocommerce/includes/admin/settings/class-wc-settings-shipping.php:54 Stack trace: #0 /home/busin544/public_html/astoria-academy.com/wp-content/plugins/woocommerce/includes/class-wc-install.php(459): WC_Settings_Shipping->get_sections() #1 /home/busin544/public_html/astoria-academy.com/wp-content/plugins/woocommerce/includes/class-wc-install.php(213): WC_Install::create_options() #2 /home/busin544/public_html/astoria-academy.com/wp-includes/class-wp-hook.php(298): WC_Install::install(false) #3 /home/busin544/public_html/astoria-academy.com/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters('', Array) #4 /home/busin544/public_html/astoria-academy.com/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #5 /home/busin544/public_html/astoria-academy.com/wp-admin/includes/plugin.php(591): do_action('activate_woocom...', false) #6 /home/busin544/public_html/astoria-academy.c in /home/busin544/public_html/astoria-academy.com/wp-content/plugins/woocommerce/includes/admin/settings/class-wc-settings-shipping.php on line 54
Well this is not a theme error , its related to woocommerce .
Please try to deactivate all your woocommerce recommended plugins . The error is coming from woocommerce itself .
Please deactivate it delete it and install latest version again .
isn't latest version in the theme that we upgraded? That is exactly what we did. But error isnt shown anymore. Thanks Alex