Lost clips after resetting preferences. Project names are still in there though.

When I tried to export into a file, I kept running into an issue of where it wouldn't export the name of my file and only save a 3083720-239740834-0762829.mp4 I was not able to open it or play it back. I went online and saw that I should reset my preferences. when I did so it opened to no projects in FCP. But I managed to recover it by typing in the title of the project. it's somehow synced and I fixed a clip to see if it would change the export outcome. It did not. So I reset it again and this time when I opened it, it was able to show me the project names of all I did, but none of the clips were attached to it. It's all a bunch of 00:00:00s. That was an accumulated eight hours worth of work and I'm hoping there's something I can do to restore it... Please help...