why the label_studio unable to upload videos and pictures when i upload the code on my own computer?

when i try to import my pictures on label_studio, so that i can finish labeling the pictures using for machine learning projects,but I find i am unable to upload any files on label_studio,and i find bug which told me [django.server::log_message::161] [WARNING] "POST /api/projects/104/import?commit_to_project=false HTTP/1.1" 404 1462, is there anyone could help and told me any useful method to slove this bug？