It does not sound like the new owner has a plan how to remedy the situation and ensure smooth transition. There should have been no discernible difference. My daughter is almost 17 months old and has never been in Day Care, but now due to change in my husbands schedule she needs to be. I have a great center who is willing to work with me, but some say the the change is bad for my daughter and that I should keep her in day care, even when she doesn't need to be there. That she needs the consistency of going the same time every day.
Consistency is important.
Your daughter needs the opportunity to get used to the adults, make friends with other children, and in general become comfortable in the care. You should try three half days or two full days a week at a minimum. We hear that turnover of staff is a major problem in day care centers. Continuity and consistency of care is important to the child' s social and emotional development. Child care does attract trained loving people.