Regarding Empty Folders (Pixiv Fanbox)

Just letting you guys know idk why folders randomly appear as empty, i am not deleting the pics from the folders and i do not share links that allow editing, either the links go back to editable folders after a while or dropbox randomly deletes the files, i will not be replacing every folder that is emptied if the pics have gone already public, i can't be assed to check posts from months or weeks ago please understand. If it's a recent enough pic i will if it's too old please look for it either on twitter or pixiv