Hi Pramod,
Okay. So sorry to tell i never use this method before thus I do not think i can advise much on this issue.
Generally, to do troubleshooting on this-
can you please try to open the URL in browser to make sure the URL is valid?
Is your image store in the same client? Or the form need to pick up the image object from others system/location as described in URL? Check if all the remote system call destination / config are in place; also check if there is suffice authorization in accessing the image file/ remote system.
regards,
Xiang Li