PHP Fatal Errors

Hello,

My Hosting Provider have informed me of several WooCommerce PHP errors that my website is having:

[29-Apr-2020 11:03:08 UTC] PHP Warning:  count(): Parameter must be an array or an object that implements Countable in /home/bramleye/simplylifting.co.uk/wp-content/plugins/woocommerce-shipping-multiple-addresses/includes/wcms-order.php on line 181
[29-Apr-2020 11:03:11 UTC] PHP Fatal error:  Uncaught Error: Call to a member function has_weight() on null in /home/bramleye/simplylifting.co.uk/wp-content/plugins/woocommerce/includes/wc-template-functions.php:3322
Stack trace:
#0 /home/bramleye/simplylifting.co.uk/wp-includes/class-wp-hook.php(287): wc_display_product_attributes(NULL)
#1 /home/bramleye/simplylifting.co.uk/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters('', Array)
#2 /home/bramleye/simplylifting.co.uk/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#3 /home/bramleye/simplylifting.co.uk/wp-content/plugins/woocommerce/templates/single-product/tabs/additional-information.php(30): do_action('woocommerce_pro...', NULL)
#4 /home/bramleye/simplylifting.co.uk/wp-content/plugins/woocommerce/includes/wc-core-functions.php(251): include('/home/bramleye/...')
#5 /home/bramleye/simplylifting.co.uk/wp-content/plugins/woocommerce/includes/wc-template-functions.php(1725): wc_get_template('single-product/...')
#6 /home/bramleye/simplylifting.co.uk/wp-content/plugins/woocommerce/templ in /home/bramleye/simplylifting.co.uk/wp-content/plugins/woocommerce/includes/wc-template-functions.php on line 3322

Please help, I have no idea what this means or how to resolve it.

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