I bought Green Star Polyp and torch coral this weekend.

When I got home both were closed. The torch opened on the same day.
Maybe two polyps emerging from green star polyp but later closed, now after few days the green star coral is still closed.
Resources say "Star Polyps close or shrink when the Star Polyps get disturbed"

What should I do?

The photo of image (I can post better quality of needed)