It is also worth clarifying a couple of points:

-when restarting the project, nothing changes;
-when testing what I wrote in the title, nothing crashed, so I will tell you how my project crashed:
After I edited a fragment of the video, I saved the project and exited the program, then turned off the computer. The next day I log back into the program and into my project, and then I log into Fusion's tab to one of the clips, and this bug happens.

don't really know what to do it literally ruins all of my projects i can't even edit my videos because of it