Skin choose type bug

My favourite skin is Steve and I love Minecraft for 10 whole years. Well, when I want to choose a skin from the character list. When I play Minecraft in Greek, I can't press the button of choosing a skin from the list. I changed the language into US English and it lets me press the button. I am Greek and I understand Greek more, so I can't just change the language to change a skin. Thank you for your understanding.