My site : http://pandweighbridge.epizy.com/upload.php gives the correct JSON output when POST request is sent from the browser.
However, when a POST request is sent from a C# client, it gives a HTML output. And it does not contain the JSON data. Please resolve the issue.
You can’t use a C# client to access your website here, you can only use a regular web browser to access your website. Remote API access is blocked on free hosting.