I’m still getting the same error. I do have some custom fields, is it possible this is causing it. I’m not getting a specific error, it just says “bad gateway.”
wp-admin/admin.php?page=UPCP-options&Action=UPCP_AddProductSpreadsheet&DisplayPage=Product
When I get to the error page here’s the html behind it:
<html>
<head><title>502 Bad Gateway</title></head>
<body bgcolor="white">
<center><h1>502 Bad Gateway</h1></center>
<hr><center>nginx</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
I tried using your template and removing my custom fields. It still chokes.