Mistakes:
  * When inserting a skin it closes the game.
  * Also when I put a skin store (free) only seen in my private games and not on the servers of Minecraft.
  * And finally, do not let me buy in the Minecraft store.

This is happening to me since Minecraft was updated to a version that I do not remember, about 4 months ago.

I already tried to uninstall Minecraft several times but it is not solved.