HELP! Shotcut Turned All My Video Clips Into AUDIO!

I was doing last moment edits on my video that I was going to export and post today, but all of a sudden, ShotCut decided to turn ALL my video clips into AUDIO. Now all I can see is a black screen when I play the video. Is there a way to undo this? I tried restarting ShotCut a few times and stuff, but I can’t get the track to turn back into video. HELP!