I'm using the latest version USPS module and I set the Debug Mode to logs. The USPS option disappears from the checkout and a few page reload will bring it back. After viewing some log files I noticed that the USPS APIS returns html file instead of xml file. Now, I'm assuming when the USPS API returns html file instead of xml file that's where the problem came from. The site is https://www.valuevapor.com/. Please help me.