The error wee see in the error log:

[25-May-2021 08:49:08 UTC] PHP Warning: Invalid argument supplied for foreach() in /home/shareles/public_html/wp-content/plugins/woocommerce/includes/class-wc-cart.php on line 1425
[25-May-2021 08:49:08 UTC] PHP Warning: array_map(): Expected parameter 2 to be an array, int given in /home/shareles/public_html/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php on line 346
[25-May-2021 08:49:08 UTC] PHP Warning: array_sum() expects parameter 1 to be array, null given in /home/shareles/public_html/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php on line 347
[25-May-2021 08:49:08 UTC] PHP Warning: Invalid argument supplied for foreach() in /home/shareles/public_html/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php on line 629
[25-May-2021 08:49:08 UTC] PHP Warning: Invalid argument supplied for foreach() in /home/shareles/public_html/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php on line 592
[25-May-2021 08:49:08 UTC] PHP Warning: Invalid argument supplied for foreach() in /home/shareles/public_html/wp-content/plugins/woocommerce/includes/class-wc-cart-totals.php on line 592