getsimple 3.3.13 install Unable to continue

[lupon]

- permissions directories and files are 755 and 644. I have also tried putting data and backup in 777.
- the user who owns the files is the same as the ftp: lupon
- is a own server where I have several webs in production. I use apache 2.4 and php 7.0

drwxr-xr-x 5 lupon lupon  4096 Sep 26 16:29 admin
drwxrwxrwx 6 lupon lupon  4096 Oct 17 17:19 backups
drwxrwxrwx 8 lupon lupon  4096 Oct 18 03:05 data
-rw-r--r-- 1 lupon lupon  3709 Sep 26 16:29 index.php
-rw-r--r-- 1 lupon lupon 35147 Sep 26 16:29 LICENSE.txt
drwxr-xr-x 6 lupon lupon  4096 Sep 26 16:40 plugins
-rw-r--r-- 1 lupon lupon  1958 Sep 26 16:31 readme.txt
-rw-r--r-- 1 lupon lupon    32 Sep 26 16:31 robots.txt
-rw-r--r-- 1 lupon lupon  4127 Oct 18 02:26 temp.gsconfig.php
-rw-r--r-- 1 lupon lupon  1388 Sep 26 16:31 temp.htaccess
drwxr-xr-x 4 lupon lupon  4096 Sep 26 16:31 theme

I get the same error: Unable to continue: Unable to write the configuration file. CHMOD 755 or 777 the /data, /backups folders & sub-folders and retry.

sorry for my English