Thank you for your query.
Do not panic.
She might have suffered from from some sprain
in her abdominal muscles.
Give her some paracetamol
and avoid active sports for some day.
Give her some antiacid medications as well.
If the pain persists an abdominal ultrasound
If you have any further queries you are free to consult me.
Hope this answers your query.
Wishing a speedy recovery.
Have a nice day.