installer 404: maybe because site has two different languages?

Hi,

My problem is that when I try and run installer.php, I get a 404 error. I suspect this has something to do with the fact that I have a dual language site because when installer.php tries to run, my url changes to one with the language tag. So from this: site.com/installer.php to site.com/en/installer.php and this returns a 404 error.