- 🇪🇸Spain penyaskito Seville 💃, Spain 🇪🇸, UTC+2 🇪🇺
This is because Drupal 8 itself is not supported. I just released https://www.drupal.org/project/messageclose/releases/8.x-1.1 → (better late than never) to support D8 and D9.
Automatically closed - issue fixed for 2 weeks with no activity.