Help!! Too much Ibuprofen?

Ok so I have 3 children sick with the flu and I'ma piggybacking ibuprofen and Tylenol to keep their fever down.

I accidentally gave my daughter another dose of ibuprofen almost 4 hrs after the first.

She's 7yrs old and 65lbs. She got 10ml the first time and then another 10ml about 4hrs later.

Will she no ok? Or should I be worried?????