Score displaying as "Public Domain" even though it shouldn't

Hi, I uploaded a new score recently, an arrangement of a living composer, but wrongly selected that it is in the public domain. Now I don't know how to change it. I tried to update the score, and click on "No" under "Is this work in Public Domain?" but still it displays a "PD" icon below. I also tried to upload the new score again (without updating it), but still the new score had a PD icon. What do I do? Thanks for help.

The score in question: https://musescore.com/user/27583588/scores/6388789