Why won't the pages of my wordpress site work when the index page will? (After migrating it from a local server to live)

I have got errors in the pages of the site. When i try to navigate away from the index page. It keeps saying this;

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, webmaster@staveleycumbria.co.uk and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.

Apache/2.2.24 (Unix) mod_hive/5.0 mod_ssl/2.2.24 OpenSSL/1.0.0-fips mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 mod_fcgid/2.3.6 Server at staveleycumbria.co.uk Port 80

The address is obviously above if you want to have a look. I have tried updating the pages on the dashboard (they're there but there's no content in them) but no changes and I've also run a 'Search and Replace plugin'

Stuck!