Hi,
you have this css rule on your custom style that add a pseudo-element with content “9”. Remove this rule for solve this issue
body .et_pb_button:after, .woocommerce a.button.alt:after, .woocommerce-page a.button.alt:after, .woocommerce button.button.alt:after, .woocommerce-page button.button.alt:after, .woocommerce input.button.alt:after, .woocommerce-page input.button.alt:after, .woocommerce #respond input#submit.alt:after, .woocommerce-page #respond input#submit.alt:after, .woocommerce #content input.button.alt:after, .woocommerce-page #content input.button.alt:after, .woocommerce a.button:after, .woocommerce-page a.button:after, .woocommerce button.button:after, .woocommerce-page button.button:after, .woocommerce input.button:after, .woocommerce-page input.button:after, .woocommerce #respond input#submit:after, .woocommerce-page #respond input#submit:after, .woocommerce #content input.button:after, .woocommerce-page #content input.button:after {
content: '9';
font-size: 20px;
}
Regards.