Multiple line in Featured-image-caption

I use the Featured-image-caption plugin.
If I use a single line, ex. “PHOTO: Private” then it works fine.
Se att.files ex1.

But if I want to use two lines ex2
“PHOTO: Private”
The name of the person at the photo
Se att.files ex2.

Ex 1: https://ibb.co/pjfh1bg
Ex 1: https://ibb.co/3fkKvDh

Ex 2: https://ibb.co/xHpp49f
Ex 2: https://ibb.co/ctg7Xqv

The page I need help with: [log in to see the link]