It didn’t crash, I just went wrong and had no idea how to undo my error, so I searched online but unfortunately I couldn’t find the solution so I had to use the Shift+Ctrl, and when I got back on Sony Vegas, it was like it had no record of my videos.
I have found it though amongst my recieved files, though thank you for trying to help and sorry for wasting your time, I should of notified that I had resolved my problem.