script error

my e-commerce website (denoted in page link above) started getting the following msgs upon checkout. I don’t know if this is a result of a server(Apache/2) error or a plugin compatibility issue with WP. Please advise.

Warning: “continue” targeting switch is equivalent to “break”. Did you mean to use “continue 2”? in /home/irishsodab/domains/irishsodabreadco.com/public_html/wp-content/plugins/woocommerce-shipping-usps/includes/class-wc-shipping-usps.php on line 1304

Warning: “continue” targeting switch is equivalent to “break”. Did you mean to use “continue 2”? in /home/irishsodab/domains/irishsodabreadco.com/public_html/wp-content/plugins/woocommerce-shipping-usps/includes/class-wc-shipping-usps.php on line 1308

The page I need help with: [log in to see the link]