Neither of my children napped well at daycare until they switched to the toddler room where everyone was on the same one-nap-a-day schedule. From there on out though, things went well.
How many days a week is she in care? Our first was only at his center 2 days a week, which I think contributed to the problem as he never got into a good routine there. We had a bit more luck with our second child who was there for naptime five days a week.
You might consider going down to one nap both at daycare and at home, so at least she's on the same schedule in both places since you're probably nearing the age to do so anyhow. My second child just would not take a morning nap at daycare. We switched him to one nap at home as well at 12 months, which marginally improved things at daycare (he'd sleep about an hour there, wake up, then fall back asleep for another 30 minutes or so on the daycare worker's shoulder... luckily all the other kids were sleeping at that point, so they could indulge him).
Have you tried talking to the daycare workers and seeing if they can work with you to find a solution? Are you otherwise happy there? We muddled through the sleep issues with both because we were otherwise very happy with the care they were receiving, but I still feel a bit bad about it and had circumstances been different, would have looked into other options for when they were very young.