One Layer is gone

Hi, I’m currently working on a site model for my assignment, I modeled all the context building in one layer and it’s all gone now 2 days before a panel. I dont remember deleting it at all I opened the model and its gone.

is there any way that I can retrieve the layer back??

Hi Allesia - you can look for 3dmbak files in the same folder and discarded Autosave files in the Windows Trash.