According to Pledis Entertainment, Nana was coming down from the stage when she tripped, falling 1.2 m (3'11"), and was taken to the hospital right away. After a check up, it's been revealed that the idol fortunately hasn't suffered any big injuries.
However, as Nana is currently in a state of shock from the incident, she's currently said to be resting. Nana's scheduled activities following the 'Show Champion' recording have been cancelled for the moment to give Nana time to calm herself and recover.
Pledis Entertainment commented, "According to the results of the examination, there are no major injuries for Nana, but because her health is our first priority, she will spend time focusing on her recovery and regaining composure."
We wish Nana a speedy recovery!