Hola @Monique_2024,
Thanks for the question and welcome to the After Effects community. I'm Kevin, a moderator here. The team may need a little more information about your system, media, and your comp to determine the root cause of this issue. See: How do I write a bug report?
My question is about your media drive. Is it connected over a network, like a SAN or NAS, are they connected via an attached drive, or is it only internal storage you are using? Have the filepaths been consistent,