Hi Gustavo, 

Welcome to Box Community and glad to assist!

To get a closer look, you please confirm the following? 

• Can you attach a screenshot of your error in this Community post?
• Your Operating System and Box version. 

We'd love to further assist! 

Thank you so much. This is the error I get when trying to log in to synchronize box drive on my MACBooK Air laptop.

Laptop specifications: