so I have been working on a project for about 2 weeks and had no problems. I saved the project and went on a 4 day trip. when I came back to finish up it says "unable to import file as project. (bad format or not readable)" I thought I had auto saves but I dont see any and I have tried restarting my computer, dragging it into another project, trying it from desktop and within finder. I don't know what else to do but I need it to open. I tried opening other projects and they worked fine. please help.