I know it has to be painful.

But know that your daughter very likely understands. I trust that she understands the circumstances, and that she realizes that we sometimes can't do things we want to do out of feasibility. I don't think she faults you, and moreover, you're faulting yourself enough for the both of you (not that it's founded).
She understands. I know that doesn't help much, but she knows you'd give the world to be there right now. She understands it's the thought that truly counts, and I think you've done all you can.