HTTPRequest struggling to get working

I have a server with IP address 213.39.109.140 and have placed a test zip file in the location shown. I am obviously not understanding this but why does this not work? Both commands return Error Code 0

EM_AndTablet is the data folder of the User. It's actual path on the server is C:\AmbritDatabases\EM_AndTablet

I have made sure the path is correct and that capitalization is accurate. I have tried full path, offset etc.

HTTPDestination("C:\Ambrit\Development\Equine Manager\Mobile\Android\Equine Manager Android Tablet\Exe\AmbritFTPFiles\Files.zip")
Error(ErrorInfo(errFullDetails))
HTTPRequest("213.39.109.140/EM_AndTablet/Sync/Subscriber/AndroidTabletd20180202t09483735/Data/Files.zip")
Error(ErrorInfo(errFullDetails))

Any suggestions much appreciated. Thx.