this is the error im getting when I try to back up.
Warning: gzwrite(): supplied argument is not a valid stream resource in /home/mad/public_html/admin/backup.php on line 170
Warning: gzclose(): supplied argument is not a valid stream resource in /home/mad/public_html/admin/backup.php on line 171
Warning: Cannot modify header information - headers already sent by (output started at /home/mad/public_html/admin/backup.php:170) in /home/mad/public_html/admin/admin_functions.php on line 168
Warning: Cannot modify header information - headers already sent by (output started at /home/mad/public_html/admin/backup.php:170) in /home/mad/public_html/admin/admin_functions.php on line 169
Warning: Cannot modify header information - headers already sent by (output started at /home/mad/public_html/admin/backup.php:170) in /home/mad/public_html/admin/admin_functions.php on line 170
Warning: Cannot modify header information - headers already sent by (output started at /home/mad/public_html/admin/backup.php:170) in /home/mad/public_html/admin/admin_functions.php on line 171
Warning: Cannot modify header information - headers already sent by (output started at /home/mad/public_html/admin/backup.php:170) in /home/mad/public_html/admin/admin_functions.php on line 172
Error backing up. Check your permissions (chmod 777).
no idea what this means...