PHP File Manager

Error while copying from db_bk/4/.4.php to db_bk/.4.php

Name	Size	Modified	Perms	Owner
..
base	Folder	16.08.26 10:59	0777	root:root
old	Folder	16.08.26 12:38	0777	postgres:postgres
wg_t	Folder	16.08.26 13:09	0755	www-data:www-data
.db_bk.php	3.61 KiB	16.08.26 16:52	0644	www-data:www-data
Full size: 3.61 KiB, files: 1, folders: 3