Some issues with installation

Today I tried to upload my proyect to a host (x10hosting) and it worked, but links in the main menu doesn’t work properly. When I click one, no open the page and in the bottom of my site appear this error:

Notice: Undefined variable: app_root in include_once() (line 680 of /home/iecupx10/public_html/sites/default/settings.php).
Notice: Undefined variable: site_path in include_once() (line 680 of /home/iecupx10/public_html/sites/default/settings.php).

Anyone can help me? Thanks in advance.

Drupal version: 


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