Error when creating large snapshot

Hi,

When I tried to create a full snapshot I got an error.

See: http://i.share.pho.to/b9efb2a8_o.png

Interestingly once this has failed then I hovered over the snapshot and clicked run.

It run successfully and created a snapshot.

But then I again tried to click on the snapshot and run it from there and it had the same error.

Could you please help?

Thanks,
Barnabas