Sessions

Thanks for sharing your php.ini values. I was asking for config values from /application/config/config.php related to sessions.

Specifically

PHP Code:

$config['cookie_prefix'] = ?;
$config['cookie_domain'] = ?;
$config['cookie_path'] = ?
$config['cookie_secure'] = ?
$config['cookie_httponly'] = ? 


The problems you describe often happens if cookies are not working correctly.

If new files are created in FCPATH/ci_sessions/ you do not have a permission problem.

You should seriously consider upgrading to CodeIgniter 3.1.9 which is very easy to do from 3.0.6.

1. Download the current version
   
2. Replace all files and directories in your system/ directory using the new version's system/ directory
   
3. Check each of the "Upgrading from ..." instruction pages starting with Upgrading from 3.03. to 3.1.0
   

You can ignore Step 1 on each of those pages because you already did it in #1 above.
You can use the Previous link on the bottom of each page to go to the next set of instructions.
The only item you will probably need to do out of all the upgrades is to replace application/config/mimes.php but you should confirm that for yourself.