shop error

My shop keeps going to a default products page, preventing my subscribers from buying items. What can I do to prevent this?

Also, when I try to install any plug-ins for Simple Facebook Connect, I get this:

‘Parse error: syntax error, unexpected ‘{‘ in /nfs/c05/h02/mnt/72012/domains/blog.bruteprop.co.uk/html/wp-content/plugins/simple-facebook-connect/sfc-login.php on line 210’

I am retarded at code, so please help.