View Shtml Fix -

This means the server is treating the file as a static document. The AddOutputFilter directive mentioned above is the primary fix.

What or behavior happens when you load the page (raw code, a 404, a 500 error, or a file download?) view shtml fix

Which software you run (Apache, Nginx, IIS, or shared hosting?) This means the server is treating the file

Nginx does not support SSI by default in its standard configuration. You must explicitly turn it on within your server block. a 500 error

If you aren't using Apache, the fix is in the configuration files:

If you are looking for more specific help, you may want to check Apache documentation or Ubuntu server configuration guides .