EL BAUL DE ERYTHRO

In the /blogs folder there is a file called [sample.htaccess]. You should try renaming it to [.htaccess].

This will optimize the way b2evolution is handled by the webserver (if you are using Apache). This file is not active by default because a few hosts would display an error right away when you try to use it. If this happens to you when you rename the file, just remove it and you'll be fine.