The requested action (register) was not defined in the system.

By lord55

1. make sure mod_rewrite is turned on
2. make sure the override option for that directory is set correctly
in your httpd configuration (AllowOverride)
3. if your elgg installation is in a subdirectory, you need to edit
your .htaccess according to the documentation
4. in the initial setup, you needed to set the full path to your site
root correctly - especially for a subdirectory install - this last
step is the most likely problem - you should be able to check your
error log for your web server and check the errors to see why it can't
find the correct include


questi sono alcuni link utili:

non è un un problema della configurazione del sito in base al tuo hostservice.