Hi Emmanuel, 

Welcome to Box Community and glad to help!

To find your missing folder, please check out your trash/bin icon in box.com. 

To restore specific items in Trash:

The steps below apply whether you’re selecting from search results or from all Trash items.

1. Hover to highlight the row of the item you want. The More Options ellipsis (…) displays.


2. Click the ellipsis (...).  Then: 

• To return the item to its original location in Box, click Restore.

3. At the prompt, click Okay.

Learn how to easily manage contents in your trash by using this helpful article. 

Hope it helps!