This is the Sendy Woocommerce Plugin for Sendy Public API. When installed in an e-commerce website, it can be used in the checkout process to estimate and determine the cost of shipping to the clients location. https://sendyit.com
Warning: Declaration of Sendy_Shipping_Method::calculate_shipping($package) should be compatible with WC_Shipping_Method::calculate_shipping($package = Array) in public_html/wp-content/plugins/sendy-api/sendy-api.php on line 47
also showing another warning
Warning: A non-numeric value encountered in public_html/wp-content/plugins/sendy-api/sendy-api.php on line 186
I was unable to access the website backend and frontend. The only way to remedy this was to delete the API & restore the website backup. The website is running WordPress Version 5.5.1, Woocommerce Version 4.6.0, and PHP 7.4.