@moaaz said in Online Payment Gateway for Pakistan:

JazzCash is enabled and WooCommerce is not forcing the SSL certificate on your checkout page. Please ensure that you have a valid SSL certificate and that you are forcing the checkout pages to be secured.

4 Steps to resolve issue SSL certificate on your checkout page:

Disable Really Simple SSL plugin. Go to Woocommerce settings – Advanced tab. On “Secure Checkout” option, check “Force Secure Checkout” Then, and only then, enable Really Simple SSL plugin.
At this point you should have no error.