how to get last stage of the project i saved

Hi, i am trying to do few things with paraview and since i am new to this, i was doing ctrl+s in middle of my work to save the current state of the project.

When i pressed ctrl+s it popped out

and i did save it as terrain.pvd

When i was adding some filter to the pipeline, paraview suddenly crashed and closed.

When i opened the terrain.pvd file by open file in file menu

i only get this

where can i get the last stage of my project?

You unintentionally saved the data with Ctrl-S rather than saving ParaView’s state, which includes the filters you’ve added and configured and are expecting to see when you loaded the .pvd file. Instead, you should use File → Save State, and save a .pvsm file.