VirtualBox deleted

Hi!
I accidentally deleted the VirtualBox.
Open Local app, and all my Local Sites and files are intact.
In the Local Sites pannel I can run the site normally, but when I click on ADMIN ou VIEW SITE, of course, it’s all empty.
How can I put this running again?
I know nothing about database, just WP and design.
Thanks a lot for help me on my dumbest day!