By accident I deleted the contact Sofia Rodriguez, what should I do?

Hi @Josien Schoorl

- You can undelete from recycle bin. 

To restore items from the Salesforce Recycle Bin, use the App Launcher to find and open the Recycle Bin, then select the desired records and click Undelete to restore them to their original locations. You can view either "My Recycle Bin" or "All Recycle Bin" depending on your user permissions. The Recycle Bin retains records for approximately 15 days, and child records are often restored automatically when their parent record is restored.  

Thanks