wp-admin/install.php cannot access

I have installed wordpress in public_html folder.
created database and configure the wp-config.php
but when I want to access install.php error message occurs:

Sorry, the page you requested was not found.

Additionally, a 410 Gone error was encountered while trying to use an ErrorDocument to handle the request.

my hosting: http://www.webhostingpad.com
my url: http://www.dyslexiclikeme.org/wp-admin/install.php