@jis Hmm. This is difficult.
The 'new' Gallery requires additional log in information from you.
To enter the Gallery, use the Projects tab in MIT App Inventor. Select My projects and locate the new button "Login to Gallery". Click the button. The first time you use the new Gallery button you must log-in. Provide your email and name in the spaces provided and press Submit. You should see the new Gallery pages.
Subsequent log-in to the Gallery happens automatically after you use the Login to Gallery or Publish to Gallery buttons. You will already be logged in.
Maybe someone can test the donation?
Merry Christmas, Wesołych Świąt, Feliz Navidad, God Jul, Joyeux Noel, Καλά Χριστούγεννα, Happy Christmas, Veseloho Rizdva, Prettige Kerstdagen, Frohe Weihnachten!, 성탄 축하 , Buon Natale, 聖誕快樂 , 圣诞快乐, Sretan Božić, C рождеством!, عيد ميلاد مجيد
--Steve