Error with Copying Disk while making VM

I was about to make a Virtual Machine via Open Nebula 3. Everything went well and good but VM stays permanently on Pending status. Whenever I start one vm, it declares an error message same as I’ve stated below. Please advise on how to resolve this issue. Thank you.
ERROR=[MESSAGE="Error exciting image transfer script: Error copying mehmet:/var/lib/one/images/31dd9191dd9e5ac0cc86954f86f75dda to local host:/var/lib/one//6/images/disk.0",
TIMESTAMP="Fri Nov 25 09:38:08 2011" ]
