EMONCMS-Install

[esa]

Dear,

I have successfully installed EMONCMS on a Rpi and on a Remote WebSite but on my Local server running with Funtoo, I'm not able to see the first login page.I have a empty page.

http://emoncms.org/

Concerning EMONCMS, it consist as for Wordpress to a CMS (unzip a folder , create a DB and call the page in FF).
I have followed the instruction here : https://github.com/emoncms/emoncms/blob/master/docs/LinuxInstall.md#install-the-emoncms-application-via-git
LAMP was already installed on my Funtoo.

As I want to check my LAMP configuration, I have installed WORDPRESS and it works (I just have checked the Login Page).

For EMONCMS :
If I suppress the file setting.php, then I receive an error.
If I change the password then I don't receive any error but an empty page.

My PHP configuration

Calculating dependencies... done!

[ebuild R ] dev-lang/php-5.5.18:5.5 USE="apache2 berkdb bzip2 cli crypt ctype fileinfo filter gd gdbm hash iconv intl json mysql nls opcache phar posix readline session simplexml ssl tokenizer truetype unicode xml zip zlib -bcmath -calendar -cdb -cgi -cjk -curl -debug -embed -enchant -exif (-firebird) -flatfile -fpm -frontbase -ftp -gmp -imap -inifile -iodbc -ipv6 -kerberos -ldap -ldap-sasl -libedit -libmysqlclient -mhash -mssql -mysqli -oci8-instant-client -odbc -pcntl -pdo -postgres -qdbm -recode (-selinux) -sharedmem -snmp -soap -sockets -spell -sqlite -sybase-ct -systemd -sysvipc -threads -tidy -vpx -wddx -xmlreader -xmlrpc -xmlwriter -xpm -xslt" 0 kB

How can I debug this issue?

Best Regards