while creating the backup I've got following errror, how

Hi, while creating the backup I've got following errror, how to fix it? Saving the backup on FTP (and connection is tested as fine).

Warning: errno:2 scandir(/home/h/hereza2/www/laznenalodi.cz/wp-content/plugins/revslider/temp/update_extract/sec1/1.txt/etc/dhcp): failed to open dir: Permission denied /home/h/hereza2/www/laznenalodi.cz/wp-content/plugins/snapshot/lib/snapshot_utilities.php on line 451