I need professional help

I give up

I have tried everything

This is my site

http://www.technewsin5.com

Home page loads but everything adds gives a 500 Internal server error.
I deactivated all plugins, reinstalled, but nothing works.

Where can i seek professional help?

Are places like elance the right place to post for help?

Or is there something ellse that you would suggest for similar wordpress issues?

many many thanx

theodore