Fatal error: Uncaught Error: Call to a member function is_sandbox() on null in /home/destin39/public_html/camprobertshistoricalmuseum.com/wp-content/plugins/woocommerce-square/includes/Handlers/Connection.php:241 Stack trace: #0 /home/destin39/public_html/camprobertshistoricalmuseum.com/wp-content/plugins/woocommerce-square/includes/API.php(812): WooCommerce\Square\Handlers\Connection->refresh_connection() #1 /home/destin39/public_html/camprobertshistoricalmuseum.com/wp-content/plugins/woocommerce-square/includes/API.php(776): WooCommerce\Square\API->do_post_parse_response_validation() #2 /home/destin39/public_html/camprobertshistoricalmuseum.com/wp-content/plugins/woocommerce-square/includes/API.php(743): WooCommerce\Square\API->handle_response(NULL) #3 /home/destin39/public_html/camprobertshistoricalmuseum.com/wp-content/plugins/woocommerce-square/includes/API.php(607): WooCommerce\Square\API->perform_request(Object(WooCommerce\Square\API\Requests\Locations)) #4 /home/destin39/public_html/camprobertshistoricalmuseum.com in /home/destin39/public_html/camprobertshistoricalmuseum.com/wp-content/plugins/woocommerce-square/includes/Handlers/Connection.php on line 241