Hi Linda, 

Welcome to the Box Community, I'm happy to help!

Have you tried to restart your MacBook pro if and observe if the issue persists?

Can you check if the Box desktop app you are using is running in the Activity Monitor and if it's the latest version? If its running, can you quite the app from the menu bar and then restart the app and see if that helps?

Let me know how it goes and if the issue continuous, please let us know what version on Box desktop app are you running and what macOS.

Looking forward to hear from you!

Regards,

I have tried all of this and the problem is still there.  

Same here; there is a window from BOX popping up, stating that I need to reset Box manually; and my log file has been send to Box; please I would appreciate your assistance; I "need" my files...