Installing Drupal

¡Buenas Noches!

He instalado Drupal 7.34 con el auto-instalador de hosting utilizado, pero en mi caso este hosting, no me ofrecía la posibilidad de instalar Drupal 7.34 en Español sino por defecto se instala en Inglés.. ¿ Qué puedo hacer? ¿ Desinstalarlo e instalarlo a través del ftp con filezilla y tardo más o instalar algún módulo para configurar módulos instalados en Drupal y a la vez se me instale también algún módulo que configure en español panel de control de Drupal y resto de opciones de trabajo de Drupal y no me cause problemas en el Drupal ya instalado?

I have created multiple sites according to instructions https://www.drupal.org/documentation/install/multi-site (I am using Mamp pro)
My localhost or first site works nicely. Then I created additional sites in the sites folder with a fresh copy of default.settings.php changed to settings.php and modules and theme folder like so drupal-7/sites/second-site/settings.php
I have created a sites.php file from example file and have
$sites = array(
'drupal-7' => 'drupal-7',

Sorry if I'm posting this in the wrong place or if the answer is already in a forum. I, brand new to Drupal and a crafty CMS manager, but not an honest to goodness programmer.

I couldn't figure out how to search just Drupal Forums, and Drupal.org search did not net result in a forum. I could not create a post at a higher level of the Forum Hierarchy, so I just took a shot! Now to my question.

-----------------------

Is there a WYSIWYG module for version 7.34? Couldn't find one.
If there isn't, can I just install the latest version I can find?

Good afternoon,

Just installed latest → Drupal 7.34

On Brand new Ubuntu v14

Admin → Settings not loading and giving a database error →

PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT 1 AS expression FROM {variable} variable WHERE ( (name = :db_condition_placeholder_0) ); Array ( [:db_condition_placeholder_0] => drupal_http_request_fails ) in variable_set() (line 992 of /home/admin/web/jandj.com/public_html/includes/bootstrap.inc).

I have some menu..

Item
- Subitem1
- Subitem2
- Subitem3
Item2
- Subitem12
- Subitem22

and so... Every menu item is linked to pages created with View. I have nodes, that are displayed each node in specific page. But I cant make connection between Path and Node. Im using Pathauto and my node path now is like:

www.domain.com/somethng-node-title

I want to be

I created a server with mandriva, configure, put the drupal files, but when starts the install
i get this error:

SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'modules/system/system.module' for key 1

The database was empty. How can i fix it? Thx

This error was in Database configuration, after i select the database, username and password.