What about deleting a folder with all its content?
When I try to delete a folder with subfolders or filed it ends up with error in version 3.3.19.
@zicko could you send us a screenshot of the error you're receiving?
danny Just this message https://i.paste.pics/6XCJR.png. Permissions are 777 and owner of these files and folder is me. Folder is filled with images.