I am using the coop on a site with shtml pages. It was working fine until yesterday, where instead of the links I am getting this weird error message Search in google shows that there are hundreds of sites showing this, so I guess it is a common problem. Any idea of what it is and how can it be fixed?
Probably will need to check your Apache error log. Sounds like whatever you are doing with .htaccess isn't allowed by the server configuration.