Auto alias not working

[ff123]

Hi,

On my site the page id (40.0.0.1.0.0.phtml) (alias) wont be auto generated. It did before, but now it refuses to auto generate a page id. Either on localhost as well as on the online website.

Is there some option that has to be set?

I am using url rewrite.

Regards, groeten,
vuurvos