Quando eu quero trocar de Skin no minecraft apereçe Verifique sua Identidade

Put the summary of the bug you're having here

What I expected to happen was...:
I expected you to put the skin
 

 
 
 
 
What actually happened was...:
appeared, verify your identity
 

 
 
 
 
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...